56801569 has 8 divisors (see below), whose sum is σ = 62126208. Its totient is φ = 51503760.

The previous prime is 56801567. The next prime is 56801587. The reversal of 56801569 is 96510865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56801569 - 2¹ = 56801567 is a prime.

It is a super-2 number, since 2×56801569² = 6452836481723522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56801561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137 + ... + 10870.

It is an arithmetic number, because the mean of its divisors is an integer number (7765776).

Almost surely, 2^56801569 is an apocalyptic number.

It is an amenable number.

56801569 is a deficient number, since it is larger than the sum of its proper divisors (5324639).

56801569 is a wasteful number, since it uses less digits than its factorization.

56801569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13415.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 56801569 is about 7536.6815641899. The cubic root of 56801569 is about 384.4030079752.

The spelling of 56801569 in words is "fifty-six million, eight hundred one thousand, five hundred sixty-nine".