56554720 has 48 divisors (see below), whose sum is σ = 134190000. Its totient is φ = 22523904.

The previous prime is 56554711. The next prime is 56554739. The reversal of 56554720 is 2745565.

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, 44656 + ... + 45904.

It is an arithmetic number, because the mean of its divisors is an integer number (2795625).

Almost surely, 2^56554720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56554720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67095000).

56554720 is an abundant number, since it is smaller than the sum of its proper divisors (77635280).

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

56554720 is a wasteful number, since it uses less digits than its factorization.

56554720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 56554720 is about 7520.2872285572. The cubic root of 56554720 is about 383.8453514998.

The spelling of 56554720 in words is "fifty-six million, five hundred fifty-four thousand, seven hundred twenty".