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55051010 = 2572112349
BaseRepresentation
bin1101001000000…
…0001100000010
310211120212210022
43102000030002
5103043113020
65243533442
71235632400
oct322001402
9124525708
1055051010
1129090703
121652a282
13b536481
147450470
154c76625
hex3480302

55051010 has 24 divisors (see below), whose sum is σ = 115271100. Its totient is φ = 18874464.

The previous prime is 55050997. The next prime is 55051027. The reversal of 55051010 is 1015055.

It can be written as a sum of positive squares in 2 ways, for example, as 54745201 + 305809 = 7399^2 + 553^2 .

It is a super-2 number, since 2×550510102 = 6061227404040200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55051010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55685 + ... + 56664.

Almost surely, 255051010 is an apocalyptic number.

55051010 is an abundant number, since it is smaller than the sum of its proper divisors (60220090).

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

55051010 is a wasteful number, since it uses less digits than its factorization.

55051010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112370 (or 112363 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 55051010 is about 7419.6367835629. The cubic root of 55051010 is about 380.4127785998.

Adding to 55051010 its reverse (1015055), we get a palindrome (56066065).

The spelling of 55051010 in words is "fifty-five million, fifty-one thousand, ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 112349 224698 561745 786443 1123490 1572886 3932215 5505101 7864430 11010202 27525505 55051010