56388249 has 12 divisors (see below), whose sum is σ = 84991296. Its totient is φ = 35957592.

The previous prime is 56388239. The next prime is 56388253. The reversal of 56388249 is 94288365.

56388249 is a `hidden beast` number, since 5 + 638 + 8 + 2 + 4 + 9 = 666.

It is not a de Polignac number, because 56388249 - 2⁷ = 56388121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56388229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135997 + ... + 136410.

It is an arithmetic number, because the mean of its divisors is an integer number (7082608).

Almost surely, 2^56388249 is an apocalyptic number.

It is an amenable number.

56388249 is a deficient number, since it is larger than the sum of its proper divisors (28603047).

56388249 is a wasteful number, since it uses less digits than its factorization.

56388249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272436 (or 272433 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 56388249 is about 7509.2109439008. The cubic root of 56388249 is about 383.4683601615.

The spelling of 56388249 in words is "fifty-six million, three hundred eighty-eight thousand, two hundred forty-nine".