56559361 has 2 divisors, whose sum is σ = 56559362. Its totient is φ = 56559360.

The previous prime is 56559353. The next prime is 56559397. The reversal of 56559361 is 16395565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52780225 + 3779136 = 7265^2 + 1944^2 .

It is a cyclic number.

It is not a de Polignac number, because 56559361 - 2³ = 56559353 is a prime.

It is a super-2 number, since 2×56559361² = 6397922633456642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56559301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28279680 + 28279681.

It is an arithmetic number, because the mean of its divisors is an integer number (28279681).

Almost surely, 2^56559361 is an apocalyptic number.

It is an amenable number.

56559361 is a deficient number, since it is larger than the sum of its proper divisors (1).

56559361 is an equidigital number, since it uses as much as digits as its factorization.

56559361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121500, while the sum is 40.

The square root of 56559361 is about 7520.5957875690. The cubic root of 56559361 is about 383.8558509333.

The spelling of 56559361 in words is "fifty-six million, five hundred fifty-nine thousand, three hundred sixty-one".