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61553207425060 = 22513236743105481
BaseRepresentation
bin11011111111011011110010…
…00100000011100000100100
322001221102120212011220100101
431333231321010003200210
531031441432100100220
6334525053023553444
715652033601263261
oct1577557104034044
9261842525156311
1061553207425060
11186816289a245a
126aa151075b884
13284659a3a2b60
14112b296692268
1571b2181aa30a
hex37fb79103824

61553207425060 has 24 divisors (see below), whose sum is σ = 139204946023416. Its totient is φ = 22727338126080.

The previous prime is 61553207425057. The next prime is 61553207425067. The reversal of 61553207425060 is 6052470235516.

It is a happy number.

61553207425060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1743524821476 + 59809682603584 = 1320426^2 + 7733672^2 .

It is a super-3 number, since 3×615532074250603 (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61553207425060.

It is not an unprimeable number, because it can be changed into a prime (61553207425067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118371552481 + ... + 118371553000.

It is an arithmetic number, because the mean of its divisors is an integer number (5800206084309).

Almost surely, 261553207425060 is an apocalyptic number.

It is an amenable number.

61553207425060 is an abundant number, since it is smaller than the sum of its proper divisors (77651738598356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61553207425060 is a wasteful number, since it uses less digits than its factorization.

61553207425060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236743105503 (or 236743105501 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 61553207425060 in words is "sixty-one trillion, five hundred fifty-three billion, two hundred seven million, four hundred twenty-five thousand, sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 236743105481 473486210962 946972421924 1183715527405 2367431054810 3077660371253 4734862109620 6155320742506 12310641485012 15388301856265 30776603712530 61553207425060