51056568 has 40 divisors (see below), whose sum is σ = 143007480. Its totient is φ = 17018640.

The previous prime is 51056563. The next prime is 51056569. The reversal of 51056568 is 86565015.

51056568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51056563) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 38748 + ... + 40043.

It is an arithmetic number, because the mean of its divisors is an integer number (3575187).

Almost surely, 2^51056568 is an apocalyptic number.

It is an amenable number.

51056568 is an abundant number, since it is smaller than the sum of its proper divisors (91950912).

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

51056568 is a wasteful number, since it uses less digits than its factorization.

51056568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78809 (or 78796 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 51056568 is about 7145.3878831033. The cubic root of 51056568 is about 370.9800363662.

The spelling of 51056568 in words is "fifty-one million, fifty-six thousand, five hundred sixty-eight".