56580458989 has 2 divisors, whose sum is σ = 56580458990. Its totient is φ = 56580458988.

The previous prime is 56580458861. The next prime is 56580459037. The reversal of 56580458989 is 98985408565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40023203364 + 16557255625 = 200058^2 + 128675^2 .

It is a cyclic number.

It is not a de Polignac number, because 56580458989 - 2⁷ = 56580458861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56580458489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28290229494 + 28290229495.

It is an arithmetic number, because the mean of its divisors is an integer number (28290229495).

Almost surely, 2^56580458989 is an apocalyptic number.

It is an amenable number.

56580458989 is a deficient number, since it is larger than the sum of its proper divisors (1).

56580458989 is an equidigital number, since it uses as much as digits as its factorization.

56580458989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416000, while the sum is 67.

The spelling of 56580458989 in words is "fifty-six billion, five hundred eighty million, four hundred fifty-eight thousand, nine hundred eighty-nine".