51610113 has 24 divisors (see below), whose sum is σ = 80061696. Its totient is φ = 31920000.

The previous prime is 51610081. The next prime is 51610123. The reversal of 51610113 is 31101615.

51610113 is a `hidden beast` number, since 51 + 610 + 1 + 1 + 3 = 666.

It is not a de Polignac number, because 51610113 - 2⁵ = 51610081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51610123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8488 + ... + 13238.

It is an arithmetic number, because the mean of its divisors is an integer number (3335904).

Almost surely, 2^51610113 is an apocalyptic number.

It is an amenable number.

51610113 is a deficient number, since it is larger than the sum of its proper divisors (28451583).

51610113 is a wasteful number, since it uses less digits than its factorization.

51610113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 51610113 is about 7184.0178869488. The cubic root of 51610113 is about 372.3159170320.

Adding to 51610113 its reverse (31101615), we get a palindrome (82711728).

The spelling of 51610113 in words is "fifty-one million, six hundred ten thousand, one hundred thirteen".