56380657 has 4 divisors (see below), whose sum is σ = 59348080. Its totient is φ = 53413236.

The previous prime is 56380651. The next prime is 56380663. The reversal of 56380657 is 75608365.

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 an interprime number because it is at equal distance from previous prime (56380651) and next prime (56380663).

It is a cyclic number.

It is not a de Polignac number, because 56380657 - 2⁷ = 56380529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56380651) 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, 1483683 + ... + 1483720.

It is an arithmetic number, because the mean of its divisors is an integer number (14837020).

Almost surely, 2^56380657 is an apocalyptic number.

It is an amenable number.

56380657 is a deficient number, since it is larger than the sum of its proper divisors (2967423).

56380657 is a wasteful number, since it uses less digits than its factorization.

56380657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967422.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 56380657 is about 7508.7054143840. The cubic root of 56380657 is about 383.4511495871.

The spelling of 56380657 in words is "fifty-six million, three hundred eighty thousand, six hundred fifty-seven".