56563870 has 24 divisors (see below), whose sum is σ = 111914712. Its totient is φ = 20568240.

The previous prime is 56563867. The next prime is 56563873. The reversal of 56563870 is 7836565.

It is an interprime number because it is at equal distance from previous prime (56563867) and next prime (56563873).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56563873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22164 + ... + 24583.

It is an arithmetic number, because the mean of its divisors is an integer number (4663113).

Almost surely, 2^56563870 is an apocalyptic number.

56563870 is a deficient number, since it is larger than the sum of its proper divisors (55350842).

56563870 is a wasteful number, since it uses less digits than its factorization.

56563870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46776 (or 46765 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 56563870 is about 7520.8955583760. The cubic root of 56563870 is about 383.8660511902.

The spelling of 56563870 in words is "fifty-six million, five hundred sixty-three thousand, eight hundred seventy".