56240638 has 16 divisors (see below), whose sum is σ = 85525776. Its totient is φ = 27734400.

The previous prime is 56240633. The next prime is 56240647. The reversal of 56240638 is 83604265.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56240633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87145 + ... + 87787.

It is an arithmetic number, because the mean of its divisors is an integer number (5345361).

Almost surely, 2^56240638 is an apocalyptic number.

56240638 is a deficient number, since it is larger than the sum of its proper divisors (29285138).

56240638 is a wasteful number, since it uses less digits than its factorization.

56240638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 56240638 is about 7499.3758406950. The cubic root of 56240638 is about 383.1334581614.

The spelling of 56240638 in words is "fifty-six million, two hundred forty thousand, six hundred thirty-eight".