56505567 has 8 divisors (see below), whose sum is σ = 75579696. Its totient is φ = 37550912.

The previous prime is 56505557. The next prime is 56505607. The reversal of 56505567 is 76550565.

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 56505567 - 2⁴ = 56505551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56505517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28758 + ... + 30659.

It is an arithmetic number, because the mean of its divisors is an integer number (9447462).

Almost surely, 2^56505567 is an apocalyptic number.

56505567 is a deficient number, since it is larger than the sum of its proper divisors (19074129).

56505567 is a wasteful number, since it uses less digits than its factorization.

56505567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59737.

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 56505567 is about 7517.0184913967. The cubic root of 56505567 is about 383.7341163447.

The spelling of 56505567 in words is "fifty-six million, five hundred five thousand, five hundred sixty-seven".