56099957 has 2 divisors, whose sum is σ = 56099958. Its totient is φ = 56099956.

The previous prime is 56099941. The next prime is 56099963. The reversal of 56099957 is 75999065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55741156 + 358801 = 7466^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 56099957 - 2⁴ = 56099941 is a 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 (56099977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28049978 + 28049979.

It is an arithmetic number, because the mean of its divisors is an integer number (28049979).

Almost surely, 2^56099957 is an apocalyptic number.

It is an amenable number.

56099957 is a deficient number, since it is larger than the sum of its proper divisors (1).

56099957 is an equidigital number, since it uses as much as digits as its factorization.

56099957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 56099957 is about 7489.9904539325. The cubic root of 56099957 is about 382.8137332305.

The spelling of 56099957 in words is "fifty-six million, ninety-nine thousand, nine hundred fifty-seven".