56816648 has 32 divisors (see below), whose sum is σ = 122116800. Its totient is φ = 24276672.

The previous prime is 56816629. The next prime is 56816651. The reversal of 56816648 is 84661865.

It is a junction number, because it is equal to n+sod(n) for n = 56816599 and 56816608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19886 + ... + 22562.

It is an arithmetic number, because the mean of its divisors is an integer number (3816150).

Almost surely, 2^56816648 is an apocalyptic number.

It is an amenable number.

56816648 is an abundant number, since it is smaller than the sum of its proper divisors (65300152).

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

56816648 is a wasteful number, since it uses less digits than its factorization.

56816648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069 (or 3065 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 56816648 is about 7537.6818717693. The cubic root of 56816648 is about 384.4370205340.

The spelling of 56816648 in words is "fifty-six million, eight hundred sixteen thousand, six hundred forty-eight".