56499880 has 16 divisors (see below), whose sum is σ = 127124820. Its totient is φ = 22599936.

The previous prime is 56499871. The next prime is 56499889. The reversal of 56499880 is 8899465.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56499871) and next prime (56499889).

It can be written as a sum of positive squares in 2 ways, for example, as 56040196 + 459684 = 7486^2 + 678^2 .

It is not an unprimeable number, because it can be changed into a prime (56499889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706209 + ... + 706288.

Almost surely, 2^56499880 is an apocalyptic number.

It is an amenable number.

56499880 is an abundant number, since it is smaller than the sum of its proper divisors (70624940).

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

56499880 is a wasteful number, since it uses less digits than its factorization.

56499880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412508 (or 1412504 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 56499880 is about 7516.6402069010. The cubic root of 56499880 is about 383.7212422791.

The spelling of 56499880 in words is "fifty-six million, four hundred ninety-nine thousand, eight hundred eighty".