56999965 has 8 divisors (see below), whose sum is σ = 74618208. Its totient is φ = 41454480.

The previous prime is 56999947. The next prime is 56999989.

It is a happy number.

56999965 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 56999965 - 2⁷ = 56999837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518127 + ... + 518236.

It is an arithmetic number, because the mean of its divisors is an integer number (9327276).

Almost surely, 2^56999965 is an apocalyptic number.

56999965 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56999965 is a deficient number, since it is larger than the sum of its proper divisors (17618243).

56999965 is a wasteful number, since it uses less digits than its factorization.

56999965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036379.

The product of its digits is 5904900, while the sum is 58.

The square root of 56999965 is about 7549.8321173388. The cubic root of 56999965 is about 384.8500343572.

The spelling of 56999965 in words is "fifty-six million, nine hundred ninety-nine thousand, nine hundred sixty-five".