56153643 has 32 divisors (see below), whose sum is σ = 93090816. Its totient is φ = 29317248.

The previous prime is 56153627. The next prime is 56153653. The reversal of 56153643 is 34635165.

It is not a de Polignac number, because 56153643 - 2⁴ = 56153627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56153623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27121 + ... + 29117.

It is an arithmetic number, because the mean of its divisors is an integer number (2909088).

Almost surely, 2^56153643 is an apocalyptic number.

56153643 is a deficient number, since it is larger than the sum of its proper divisors (36937173).

56153643 is a wasteful number, since it uses less digits than its factorization.

56153643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its digits is 32400, while the sum is 33.

The square root of 56153643 is about 7493.5734466274. The cubic root of 56153643 is about 382.9358081058.

The spelling of 56153643 in words is "fifty-six million, one hundred fifty-three thousand, six hundred forty-three".