56609828 has 12 divisors (see below), whose sum is σ = 108073392. Its totient is φ = 25731720.

The previous prime is 56609803. The next prime is 56609843. The reversal of 56609828 is 82890665.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1286587 = 56609828 / (5 + 6 + 6 + 0 + 9 + 8 + 2 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643250 + ... + 643337.

It is an arithmetic number, because the mean of its divisors is an integer number (9006116).

Almost surely, 2^56609828 is an apocalyptic number.

It is an amenable number.

56609828 is a deficient number, since it is larger than the sum of its proper divisors (51463564).

56609828 is a wasteful number, since it uses less digits than its factorization.

56609828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286602 (or 1286600 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 56609828 is about 7523.9502922335. The cubic root of 56609828 is about 383.9699864418.

The spelling of 56609828 in words is "fifty-six million, six hundred nine thousand, eight hundred twenty-eight".