56680361 has 4 divisors (see below), whose sum is σ = 57210192. Its totient is φ = 56150532.

The previous prime is 56680343. The next prime is 56680381. The reversal of 56680361 is 16308665.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16308665 = 5 ⋅3261733.

It is a cyclic number.

It is not a de Polignac number, because 56680361 - 2¹⁸ = 56418217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56680381) 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, 264755 + ... + 264968.

It is an arithmetic number, because the mean of its divisors is an integer number (14302548).

Almost surely, 2^56680361 is an apocalyptic number.

It is an amenable number.

56680361 is a deficient number, since it is larger than the sum of its proper divisors (529831).

56680361 is a wasteful number, since it uses less digits than its factorization.

56680361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529830.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 56680361 is about 7528.6360650519. The cubic root of 56680361 is about 384.1293893580.

The spelling of 56680361 in words is "fifty-six million, six hundred eighty thousand, three hundred sixty-one".