56791569 has 8 divisors (see below), whose sum is σ = 76275360. Its totient is φ = 37584416.

The previous prime is 56791561. The next prime is 56791607. The reversal of 56791569 is 96519765.

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

It is a cyclic number.

It is not a de Polignac number, because 56791569 - 2³ = 56791561 is a prime.

It is a super-2 number, since 2×56791569² = 6450564618963522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56791561) 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, 68679 + ... + 69500.

It is an arithmetic number, because the mean of its divisors is an integer number (9534420).

Almost surely, 2^56791569 is an apocalyptic number.

It is an amenable number.

56791569 is a deficient number, since it is larger than the sum of its proper divisors (19483791).

56791569 is a wasteful number, since it uses less digits than its factorization.

56791569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138319.

The product of its digits is 510300, while the sum is 48.

The square root of 56791569 is about 7536.0181130356. The cubic root of 56791569 is about 384.3804484124.

The spelling of 56791569 in words is "fifty-six million, seven hundred ninety-one thousand, five hundred sixty-nine".