56969217 has 16 divisors (see below), whose sum is σ = 86196480. Its totient is φ = 37170576.

The previous prime is 56969203. The next prime is 56969243. The reversal of 56969217 is 71296965.

It is a happy number.

56969217 is a `hidden beast` number, since 569 + 69 + 21 + 7 = 666.

It is not a de Polignac number, because 56969217 - 2¹⁰ = 56968193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56969417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21178 + ... + 23715.

It is an arithmetic number, because the mean of its divisors is an integer number (5387280).

Almost surely, 2^56969217 is an apocalyptic number.

It is an amenable number.

56969217 is a deficient number, since it is larger than the sum of its proper divisors (29227263).

56969217 is a wasteful number, since it uses less digits than its factorization.

56969217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44949 (or 44943 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 56969217 is about 7547.7955059739. The cubic root of 56969217 is about 384.7808208802.

The spelling of 56969217 in words is "fifty-six million, nine hundred sixty-nine thousand, two hundred seventeen".