56813568 has 96 divisors (see below), whose sum is σ = 173234880. Its totient is φ = 16220160.

The previous prime is 56813563. The next prime is 56813587. The reversal of 56813568 is 86531865.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (56813563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42348 + ... + 43668.

It is an arithmetic number, because the mean of its divisors is an integer number (1804530).

Almost surely, 2^56813568 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 56813568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86617440).

56813568 is an abundant number, since it is smaller than the sum of its proper divisors (116421312).

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

56813568 is a wasteful number, since it uses less digits than its factorization.

56813568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353 (or 1333 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 56813568 is about 7537.4775621557. The cubic root of 56813568 is about 384.4300737002.

The spelling of 56813568 in words is "fifty-six million, eight hundred thirteen thousand, five hundred sixty-eight".