56879965 has 4 divisors (see below), whose sum is σ = 68255964. Its totient is φ = 45503968.

The previous prime is 56879959. The next prime is 56880029. The reversal of 56879965 is 56997865.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 45306361 = 3402^2 + 6731^2 .

It is a cyclic number.

It is not a de Polignac number, because 56879965 - 2³ = 56879957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5687992 + ... + 5688001.

It is an arithmetic number, because the mean of its divisors is an integer number (17063991).

Almost surely, 2^56879965 is an apocalyptic number.

It is an amenable number.

56879965 is a deficient number, since it is larger than the sum of its proper divisors (11375999).

56879965 is a wasteful number, since it uses less digits than its factorization.

56879965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11375998.

The product of its digits is 4082400, while the sum is 55.

The square root of 56879965 is about 7541.8807336102. The cubic root of 56879965 is about 384.5797742466.

The spelling of 56879965 in words is "fifty-six million, eight hundred seventy-nine thousand, nine hundred sixty-five".