56704569 has 8 divisors (see below), whose sum is σ = 79585440. Its totient is φ = 35813376.

The previous prime is 56704567. The next prime is 56704589. The reversal of 56704569 is 96540765.

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

It is not a de Polignac number, because 56704569 - 2¹ = 56704567 is a prime.

It is a super-2 number, since 2×56704569² = 6430816290951522, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56704569.

It is not an unprimeable number, because it can be changed into a prime (56704567) 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, 497352 + ... + 497465.

It is an arithmetic number, because the mean of its divisors is an integer number (9948180).

Almost surely, 2^56704569 is an apocalyptic number.

It is an amenable number.

56704569 is a deficient number, since it is larger than the sum of its proper divisors (22880871).

56704569 is a wasteful number, since it uses less digits than its factorization.

56704569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994839.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 56704569 is about 7530.2436215570. The cubic root of 56704569 is about 384.1840683835.

The spelling of 56704569 in words is "fifty-six million, seven hundred four thousand, five hundred sixty-nine".