56263609 has 2 divisors, whose sum is σ = 56263610. Its totient is φ = 56263608.

The previous prime is 56263601. The next prime is 56263631. The reversal of 56263609 is 90636265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28858384 + 27405225 = 5372^2 + 5235^2 .

It is a cyclic number.

It is not a de Polignac number, because 56263609 - 2³ = 56263601 is a prime.

It is not a weakly prime, because it can be changed into another prime (56263601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28131804 + 28131805.

It is an arithmetic number, because the mean of its divisors is an integer number (28131805).

Almost surely, 2^56263609 is an apocalyptic number.

It is an amenable number.

56263609 is a deficient number, since it is larger than the sum of its proper divisors (1).

56263609 is an equidigital number, since it uses as much as digits as its factorization.

56263609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 56263609 is about 7500.9072117978. The cubic root of 56263609 is about 383.1856135720.

The spelling of 56263609 in words is "fifty-six million, two hundred sixty-three thousand, six hundred nine".