56988645 has 32 divisors (see below), whose sum is σ = 104901888. Its totient is φ = 25878528.

The previous prime is 56988643. The next prime is 56988649. The reversal of 56988645 is 54688965.

It is not a de Polignac number, because 56988645 - 2¹ = 56988643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56988643) 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, 14757 + ... + 18213.

It is an arithmetic number, because the mean of its divisors is an integer number (3278184).

Almost surely, 2^56988645 is an apocalyptic number.

It is an amenable number.

56988645 is a deficient number, since it is larger than the sum of its proper divisors (47913243).

56988645 is a wasteful number, since it uses less digits than its factorization.

56988645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its digits is 2073600, while the sum is 51.

The square root of 56988645 is about 7549.0823945696. The cubic root of 56988645 is about 384.8245560327.

The spelling of 56988645 in words is "fifty-six million, nine hundred eighty-eight thousand, six hundred forty-five".