56732559 has 16 divisors (see below), whose sum is σ = 85005312. Its totient is φ = 33393888.

The previous prime is 56732549. The next prime is 56732567. The reversal of 56732559 is 95523765.

It is not a de Polignac number, because 56732559 - 2⁵ = 56732527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56732559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56732509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30727 + ... + 32520.

It is an arithmetic number, because the mean of its divisors is an integer number (5312832).

Almost surely, 2^56732559 is an apocalyptic number.

56732559 is a deficient number, since it is larger than the sum of its proper divisors (28272753).

56732559 is a wasteful number, since it uses less digits than its factorization.

56732559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63286.

The product of its digits is 283500, while the sum is 42.

The square root of 56732559 is about 7532.1018978768. The cubic root of 56732559 is about 384.2472704818.

It can be divided in two parts, 56732 and 559, that added together give a triangular number (57291 = T₃₃₈).

The spelling of 56732559 in words is "fifty-six million, seven hundred thirty-two thousand, five hundred fifty-nine".