56570745 has 48 divisors (see below), whose sum is σ = 114879168. Its totient is φ = 23506560.

The previous prime is 56570719. The next prime is 56570783. The reversal of 56570745 is 54707565.

It is not a de Polignac number, because 56570745 - 2¹¹ = 56568697 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 4587 + ... + 11583.

It is an arithmetic number, because the mean of its divisors is an integer number (2393316).

Almost surely, 2^56570745 is an apocalyptic number.

56570745 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56570745 is an abundant number, since it is smaller than the sum of its proper divisors (58308423).

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

56570745 is a wasteful number, since it uses less digits than its factorization.

56570745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7030 (or 7023 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 56570745 is about 7521.3526044190. The cubic root of 56570745 is about 383.8816027675.

The spelling of 56570745 in words is "fifty-six million, five hundred seventy thousand, seven hundred forty-five".