56547580 has 48 divisors (see below), whose sum is σ = 124185600. Its totient is φ = 21607488.

The previous prime is 56547551. The next prime is 56547599. The reversal of 56547580 is 8574565.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39721 + ... + 41119.

It is an arithmetic number, because the mean of its divisors is an integer number (2587200).

Almost surely, 2^56547580 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 56547580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62092800).

56547580 is an abundant number, since it is smaller than the sum of its proper divisors (67638020).

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

56547580 is a wasteful number, since it uses less digits than its factorization.

56547580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 56547580 is about 7519.8124976624. The cubic root of 56547580 is about 383.8291974037.

The spelling of 56547580 in words is "fifty-six million, five hundred forty-seven thousand, five hundred eighty".