56499889 has 2 divisors, whose sum is σ = 56499890. Its totient is φ = 56499888.

The previous prime is 56499871. The next prime is 56499913. The reversal of 56499889 is 98899465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 4443664 = 7215^2 + 2108^2 .

It is a cyclic number.

It is not a de Polignac number, because 56499889 - 2⁷ = 56499761 is a prime.

It is not a weakly prime, because it can be changed into another prime (56499869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28249944 + 28249945.

It is an arithmetic number, because the mean of its divisors is an integer number (28249945).

Almost surely, 2^56499889 is an apocalyptic number.

It is an amenable number.

56499889 is a deficient number, since it is larger than the sum of its proper divisors (1).

56499889 is an equidigital number, since it uses as much as digits as its factorization.

56499889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 58.

The square root of 56499889 is about 7516.6408055727. The cubic root of 56499889 is about 383.7212626537.

The spelling of 56499889 in words is "fifty-six million, four hundred ninety-nine thousand, eight hundred eighty-nine".