56966617 has 4 divisors (see below), whose sum is σ = 59964880. Its totient is φ = 53968356.

The previous prime is 56966603. The next prime is 56966621. The reversal of 56966617 is 71666965.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56966617 - 2⁷ = 56966489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56966647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499103 + ... + 1499140.

It is an arithmetic number, because the mean of its divisors is an integer number (14991220).

Almost surely, 2^56966617 is an apocalyptic number.

It is an amenable number.

56966617 is a deficient number, since it is larger than the sum of its proper divisors (2998263).

56966617 is a wasteful number, since it uses less digits than its factorization.

56966617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998262.

The product of its digits is 408240, while the sum is 46.

The square root of 56966617 is about 7547.6232682878. The cubic root of 56966617 is about 384.7749671613.

The spelling of 56966617 in words is "fifty-six million, nine hundred sixty-six thousand, six hundred seventeen".