56572780 has 48 divisors (see below), whose sum is σ = 130618656. Its totient is φ = 20410880.

The previous prime is 56572777. The next prime is 56572781. The reversal of 56572780 is 8727565.

It is not an unprimeable number, because it can be changed into a prime (56572781) by changing a digit.

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, 29202 + ... + 31078.

It is an arithmetic number, because the mean of its divisors is an integer number (2721222).

Almost surely, 2^56572780 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 56572780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65309328).

56572780 is an abundant number, since it is smaller than the sum of its proper divisors (74045876).

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

56572780 is a wasteful number, since it uses less digits than its factorization.

56572780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 56572780 is about 7521.4878847207. The cubic root of 56572780 is about 383.8862057927.

The spelling of 56572780 in words is "fifty-six million, five hundred seventy-two thousand, seven hundred eighty".