56568361 has 2 divisors, whose sum is σ = 56568362. Its totient is φ = 56568360.

The previous prime is 56568359. The next prime is 56568389. The reversal of 56568361 is 16386565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44142736 + 12425625 = 6644^2 + 3525^2 .

It is a cyclic number.

It is not a de Polignac number, because 56568361 - 2¹ = 56568359 is a prime.

Together with 56568359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56568461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28284180 + 28284181.

It is an arithmetic number, because the mean of its divisors is an integer number (28284181).

Almost surely, 2^56568361 is an apocalyptic number.

It is an amenable number.

56568361 is a deficient number, since it is larger than the sum of its proper divisors (1).

56568361 is an equidigital number, since it uses as much as digits as its factorization.

56568361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 56568361 is about 7521.1941206168. The cubic root of 56568361 is about 383.8762101887.

The spelling of 56568361 in words is "fifty-six million, five hundred sixty-eight thousand, three hundred sixty-one".