56386539 has 24 divisors (see below), whose sum is σ = 89698752. Its totient is φ = 33847920.

The previous prime is 56386531. The next prime is 56386549. The reversal of 56386539 is 93568365.

56386539 is a `hidden beast` number, since 5 + 638 + 6 + 5 + 3 + 9 = 666.

It is not a de Polignac number, because 56386539 - 2³ = 56386531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56386494 and 56386503.

It is not an unprimeable number, because it can be changed into a prime (56386531) 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, 7932 + ... + 13254.

It is an arithmetic number, because the mean of its divisors is an integer number (3737448).

Almost surely, 2^56386539 is an apocalyptic number.

56386539 is a deficient number, since it is larger than the sum of its proper divisors (33312213).

56386539 is a wasteful number, since it uses less digits than its factorization.

56386539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447 (or 5444 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 56386539 is about 7509.0970828722. The cubic root of 56386539 is about 383.4644838366.

The spelling of 56386539 in words is "fifty-six million, three hundred eighty-six thousand, five hundred thirty-nine".