56717457 has 8 divisors (see below), whose sum is σ = 80071776. Its totient is φ = 35587392.

The previous prime is 56717447. The next prime is 56717461. The reversal of 56717457 is 75471765.

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

It is not a de Polignac number, because 56717457 - 2⁶ = 56717393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56717407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556003 + ... + 556104.

It is an arithmetic number, because the mean of its divisors is an integer number (10008972).

Almost surely, 2^56717457 is an apocalyptic number.

It is an amenable number.

56717457 is a deficient number, since it is larger than the sum of its proper divisors (23354319).

56717457 is a wasteful number, since it uses less digits than its factorization.

56717457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112127.

The product of its digits is 205800, while the sum is 42.

The square root of 56717457 is about 7531.0993221441. The cubic root of 56717457 is about 384.2131723827.

The spelling of 56717457 in words is "fifty-six million, seven hundred seventeen thousand, four hundred fifty-seven".