51089256 has 48 divisors (see below), whose sum is σ = 144387360. Its totient is φ = 16288800.

The previous prime is 51089249. The next prime is 51089261. The reversal of 51089256 is 65298015.

It is a happy number.

51089256 is a `hidden beast` number, since 510 + 8 + 92 + 56 = 666.

51089256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51089256² = 5220224157267072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51089256.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13770 + ... + 17081.

It is an arithmetic number, because the mean of its divisors is an integer number (3008070).

Almost surely, 2^51089256 is an apocalyptic number.

It is an amenable number.

51089256 is an abundant number, since it is smaller than the sum of its proper divisors (93298104).

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

51089256 is a wasteful number, since it uses less digits than its factorization.

51089256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30886 (or 30879 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 51089256 is about 7147.6748666962. The cubic root of 51089256 is about 371.0591904553.

The spelling of 51089256 in words is "fifty-one million, eighty-nine thousand, two hundred fifty-six".