56157568 has 32 divisors (see below), whose sum is σ = 113054760. Its totient is φ = 27783168.

The previous prime is 56157547. The next prime is 56157571. The reversal of 56157568 is 86575165.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10155 + ... + 14677.

Almost surely, 2^56157568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56157568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56527380).

56157568 is an abundant number, since it is smaller than the sum of its proper divisors (56897192).

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

56157568 is an equidigital number, since it uses as much as digits as its factorization.

56157568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634 (or 4622 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The square root of 56157568 is about 7493.8353331255. The cubic root of 56157568 is about 382.9447299848.

The spelling of 56157568 in words is "fifty-six million, one hundred fifty-seven thousand, five hundred sixty-eight".