56307617 has 2 divisors, whose sum is σ = 56307618. Its totient is φ = 56307616.

The previous prime is 56307613. The next prime is 56307679. The reversal of 56307617 is 71670365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46566976 + 9740641 = 6824^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 56307617 - 2² = 56307613 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (56307613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28153808 + 28153809.

It is an arithmetic number, because the mean of its divisors is an integer number (28153809).

Almost surely, 2^56307617 is an apocalyptic number.

It is an amenable number.

56307617 is a deficient number, since it is larger than the sum of its proper divisors (1).

56307617 is an equidigital number, since it uses as much as digits as its factorization.

56307617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 56307617 is about 7503.8401502164. The cubic root of 56307617 is about 383.2854936308.

The spelling of 56307617 in words is "fifty-six million, three hundred seven thousand, six hundred seventeen".