56966257 has 4 divisors (see below), whose sum is σ = 57553636. Its totient is φ = 56378880.

The previous prime is 56966249. The next prime is 56966263. The reversal of 56966257 is 75266965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75266965 = 5 ⋅15053393.

It can be written as a sum of positive squares in 2 ways, for example, as 16719921 + 40246336 = 4089^2 + 6344^2 .

It is a cyclic number.

It is not a de Polignac number, because 56966257 - 2³ = 56966249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56966297) 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, 293544 + ... + 293737.

It is an arithmetic number, because the mean of its divisors is an integer number (14388409).

Almost surely, 2^56966257 is an apocalyptic number.

It is an amenable number.

56966257 is a deficient number, since it is larger than the sum of its proper divisors (587379).

56966257 is an equidigital number, since it uses as much as digits as its factorization.

56966257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587378.

The product of its digits is 680400, while the sum is 46.

The square root of 56966257 is about 7547.5994196831. The cubic root of 56966257 is about 384.7741566323.

The spelling of 56966257 in words is "fifty-six million, nine hundred sixty-six thousand, two hundred fifty-seven".