56533648 has 20 divisors (see below), whose sum is σ = 112082608. Its totient is φ = 27609120.

The previous prime is 56533643. The next prime is 56533649. The reversal of 56533648 is 84633565.

It is a self number, because there is not a number n which added to its sum of digits gives 56533648.

It is not an unprimeable number, because it can be changed into a prime (56533643) 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, 40398 + ... + 41773.

Almost surely, 2^56533648 is an apocalyptic number.

It is an amenable number.

56533648 is a deficient number, since it is larger than the sum of its proper divisors (55548960).

56533648 is a wasteful number, since it uses less digits than its factorization.

56533648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82222 (or 82216 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 56533648 is about 7518.8860877127. The cubic root of 56533648 is about 383.7976726382.

The spelling of 56533648 in words is "fifty-six million, five hundred thirty-three thousand, six hundred forty-eight".