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53225124121 = 1317323666129
BaseRepresentation
bin110001100100011101…
…101111000100011001
312002101100110110012101
4301210131233010121
51333001112432441
640241251043401
73562653042661
oct614435570431
9162340413171
1053225124121
1120633216594
12a394ba0561
135032c970b0
14280cbb91a1
1515b7aa7231
hexc6476f119

53225124121 has 8 divisors (see below), whose sum is σ = 57650692680. Its totient is φ = 48846888192.

The previous prime is 53225124107. The next prime is 53225124151. The reversal of 53225124121 is 12142152235.

It is a happy number.

53225124121 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 18976440025 + 34248684096 = 137755^2 + 185064^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53225124121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53225124121.

It is not an unprimeable number, because it can be changed into a prime (53225124151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11830816 + ... + 11835313.

It is an arithmetic number, because the mean of its divisors is an integer number (7206336585).

Almost surely, 253225124121 is an apocalyptic number.

It is an amenable number.

53225124121 is a deficient number, since it is larger than the sum of its proper divisors (4425568559).

53225124121 is a wasteful number, since it uses less digits than its factorization.

53225124121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23666315.

The product of its digits is 4800, while the sum is 28.

Adding to 53225124121 its reverse (12142152235), we get a palindrome (65367276356).

The spelling of 53225124121 in words is "fifty-three billion, two hundred twenty-five million, one hundred twenty-four thousand, one hundred twenty-one".

Divisors: 1 13 173 2249 23666129 307659677 4094240317 53225124121