56587799 has 2 divisors, whose sum is σ = 56587800. Its totient is φ = 56587798.

The previous prime is 56587789. The next prime is 56587819. The reversal of 56587799 is 99778565.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56587799 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56587709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28293899 + 28293900.

It is an arithmetic number, because the mean of its divisors is an integer number (28293900).

Almost surely, 2^56587799 is an apocalyptic number.

56587799 is a deficient number, since it is larger than the sum of its proper divisors (1).

56587799 is an equidigital number, since it uses as much as digits as its factorization.

56587799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4762800, while the sum is 56.

The square root of 56587799 is about 7522.4862246467. The cubic root of 56587799 is about 383.9201742888.

The spelling of 56587799 in words is "fifty-six million, five hundred eighty-seven thousand, seven hundred ninety-nine".