56366617 has 2 divisors, whose sum is σ = 56366618. Its totient is φ = 56366616.

The previous prime is 56366581. The next prime is 56366621. The reversal of 56366617 is 71666365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51609856 + 4756761 = 7184^2 + 2181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56366617 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56366617.

It is not a weakly prime, because it can be changed into another prime (56366657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28183308 + 28183309.

It is an arithmetic number, because the mean of its divisors is an integer number (28183309).

Almost surely, 2^56366617 is an apocalyptic number.

It is an amenable number.

56366617 is a deficient number, since it is larger than the sum of its proper divisors (1).

56366617 is an equidigital number, since it uses as much as digits as its factorization.

56366617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 56366617 is about 7507.7704413494. The cubic root of 56366617 is about 383.4193177417.

The spelling of 56366617 in words is "fifty-six million, three hundred sixty-six thousand, six hundred seventeen".