56533959 has 24 divisors (see below), whose sum is σ = 86750352. Its totient is φ = 35354880.

The previous prime is 56533937. The next prime is 56533969. The reversal of 56533959 is 95933565.

It is a happy number.

56533959 is a `hidden beast` number, since 565 + 3 + 39 + 59 = 666.

It is not a de Polignac number, because 56533959 - 2⁸ = 56533703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56533909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82432 + ... + 83114.

It is an arithmetic number, because the mean of its divisors is an integer number (3614598).

Almost surely, 2^56533959 is an apocalyptic number.

56533959 is a deficient number, since it is larger than the sum of its proper divisors (30216393).

56533959 is a wasteful number, since it uses less digits than its factorization.

56533959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247 (or 1244 counting only the distinct ones).

The product of its digits is 546750, while the sum is 45.

The square root of 56533959 is about 7518.9067689392. The cubic root of 56533959 is about 383.7983764129.

The spelling of 56533959 in words is "fifty-six million, five hundred thirty-three thousand, nine hundred fifty-nine".