56418720 has 48 divisors (see below), whose sum is σ = 177720480. Its totient is φ = 15044864.

The previous prime is 56418683. The next prime is 56418751. The reversal of 56418720 is 2781465.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58290 + ... + 59249.

It is an arithmetic number, because the mean of its divisors is an integer number (3702510).

Almost surely, 2^56418720 is an apocalyptic number.

It is an amenable number.

56418720 is an abundant number, since it is smaller than the sum of its proper divisors (121301760).

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

56418720 is a wasteful number, since it uses less digits than its factorization.

56418720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117557 (or 117549 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 56418720 is about 7511.2395781256. The cubic root of 56418720 is about 383.5374204151.

Adding to 56418720 its sum of digits (33), we get a triangular number (56418753 = T₁₀₆₂₂).

The spelling of 56418720 in words is "fifty-six million, four hundred eighteen thousand, seven hundred twenty".