51110618 has 16 divisors (see below), whose sum is σ = 82895400. Its totient is φ = 23494656.

The previous prime is 51110597. The next prime is 51110659. The reversal of 51110618 is 81601115.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37368769 + 13741849 = 6113^2 + 3707^2 .

It is a super-2 number, since 2×51110618² = 5224590544683848, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51110593 and 51110602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858 + ... + 10506.

Almost surely, 2^51110618 is an apocalyptic number.

51110618 is a deficient number, since it is larger than the sum of its proper divisors (31784782).

51110618 is a wasteful number, since it uses less digits than its factorization.

51110618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 51110618 is about 7149.1690426231. The cubic root of 51110618 is about 371.1109003615.

The spelling of 51110618 in words is "fifty-one million, one hundred ten thousand, six hundred eighteen".