56457347 has 4 divisors (see below), whose sum is σ = 57137640. Its totient is φ = 55777056.

The previous prime is 56457319. The next prime is 56457361. The reversal of 56457347 is 74375465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74375465 = 5 ⋅14875093.

It is a cyclic number.

It is not a de Polignac number, because 56457347 - 2⁸ = 56457091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56457307) 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, 340022 + ... + 340187.

It is an arithmetic number, because the mean of its divisors is an integer number (14284410).

Almost surely, 2^56457347 is an apocalyptic number.

56457347 is a deficient number, since it is larger than the sum of its proper divisors (680293).

56457347 is an equidigital number, since it uses as much as digits as its factorization.

56457347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680292.

The product of its digits is 352800, while the sum is 41.

The square root of 56457347 is about 7513.8104181567. The cubic root of 56457347 is about 383.6249299050.

The spelling of 56457347 in words is "fifty-six million, four hundred fifty-seven thousand, three hundred forty-seven".