56199799 has 2 divisors, whose sum is σ = 56199800. Its totient is φ = 56199798.

The previous prime is 56199797. The next prime is 56199809. The reversal of 56199799 is 99799165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56199799 - 2¹ = 56199797 is a prime.

Together with 56199797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56199797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28099899 + 28099900.

It is an arithmetic number, because the mean of its divisors is an integer number (28099900).

Almost surely, 2^56199799 is an apocalyptic number.

56199799 is a deficient number, since it is larger than the sum of its proper divisors (1).

56199799 is an equidigital number, since it uses as much as digits as its factorization.

56199799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1377810, while the sum is 55.

The square root of 56199799 is about 7496.6525196250. The cubic root of 56199799 is about 383.0406985681.

The spelling of 56199799 in words is "fifty-six million, one hundred ninety-nine thousand, seven hundred ninety-nine".