56245589 has 2 divisors, whose sum is σ = 56245590. Its totient is φ = 56245588.

The previous prime is 56245583. The next prime is 56245601. The reversal of 56245589 is 98554265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 12460900 = 6617^2 + 3530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56245589 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56245583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28122794 + 28122795.

It is an arithmetic number, because the mean of its divisors is an integer number (28122795).

Almost surely, 2^56245589 is an apocalyptic number.

It is an amenable number.

56245589 is a deficient number, since it is larger than the sum of its proper divisors (1).

56245589 is an equidigital number, since it uses as much as digits as its factorization.

56245589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 44.

The square root of 56245589 is about 7499.7059275681. The cubic root of 56245589 is about 383.1447005545.

The spelling of 56245589 in words is "fifty-six million, two hundred forty-five thousand, five hundred eighty-nine".