56609755 has 4 divisors (see below), whose sum is σ = 67931712. Its totient is φ = 45287800.

The previous prime is 56609747. The next prime is 56609767. The reversal of 56609755 is 55790665.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56609755 - 2³ = 56609747 is a prime.

It is a super-2 number, since 2×56609755² = 6409328722320050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5660971 + ... + 5660980.

It is an arithmetic number, because the mean of its divisors is an integer number (16982928).

Almost surely, 2^56609755 is an apocalyptic number.

56609755 is a deficient number, since it is larger than the sum of its proper divisors (11321957).

56609755 is a wasteful number, since it uses less digits than its factorization.

56609755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321956.

The product of its (nonzero) digits is 283500, while the sum is 43.

The square root of 56609755 is about 7523.9454410568. The cubic root of 56609755 is about 383.9698213950.

The spelling of 56609755 in words is "fifty-six million, six hundred nine thousand, seven hundred fifty-five".