56418540 has 48 divisors (see below), whose sum is σ = 164844288. Its totient is φ = 14390464.

The previous prime is 56418539. The next prime is 56418541. The reversal of 56418540 is 4581465.

It is an interprime number because it is at equal distance from previous prime (56418539) and next prime (56418541).

It is not an unprimeable number, because it can be changed into a prime (56418541) 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, 19062 + ... + 21821.

It is an arithmetic number, because the mean of its divisors is an integer number (3434256).

Almost surely, 2^56418540 is an apocalyptic number.

It is an amenable number.

56418540 is an abundant number, since it is smaller than the sum of its proper divisors (108425748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56418540 is a wasteful number, since it uses less digits than its factorization.

56418540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40918 (or 40916 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 56418540 is about 7511.2275960724. The cubic root of 56418540 is about 383.5370125315.

The spelling of 56418540 in words is "fifty-six million, four hundred eighteen thousand, five hundred forty".