56878563 has 24 divisors (see below), whose sum is σ = 92060928. Its totient is φ = 31087056.

The previous prime is 56878559. The next prime is 56878567. The reversal of 56878563 is 36587865.

It is an interprime number because it is at equal distance from previous prime (56878559) and next prime (56878567).

It is not a de Polignac number, because 56878563 - 2² = 56878559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56878567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5031 + ... + 11792.

It is an arithmetic number, because the mean of its divisors is an integer number (3835872).

Almost surely, 2^56878563 is an apocalyptic number.

56878563 is a deficient number, since it is larger than the sum of its proper divisors (35182365).

56878563 is a wasteful number, since it uses less digits than its factorization.

56878563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16863 (or 16856 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 56878563 is about 7541.7877853994. The cubic root of 56878563 is about 384.5766144623.

The spelling of 56878563 in words is "fifty-six million, eight hundred seventy-eight thousand, five hundred sixty-three".