56509655 has 8 divisors (see below), whose sum is σ = 68228592. Its totient is φ = 44929728.

The previous prime is 56509639. The next prime is 56509657. The reversal of 56509655 is 55690565.

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 56509655 - 2⁴ = 56509639 is a prime.

It is a super-2 number, since 2×56509655² = 6386682216438050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56509657) 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, 33854 + ... + 35483.

It is an arithmetic number, because the mean of its divisors is an integer number (8528574).

Almost surely, 2^56509655 is an apocalyptic number.

56509655 is a deficient number, since it is larger than the sum of its proper divisors (11718937).

56509655 is a wasteful number, since it uses less digits than its factorization.

56509655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69505.

The product of its (nonzero) digits is 202500, while the sum is 41.

The square root of 56509655 is about 7517.2904027981. The cubic root of 56509655 is about 383.7433701069.

The spelling of 56509655 in words is "fifty-six million, five hundred nine thousand, six hundred fifty-five".