56099789 has 2 divisors, whose sum is σ = 56099790. Its totient is φ = 56099788.

The previous prime is 56099777. The next prime is 56099839. The reversal of 56099789 is 98799065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37002889 + 19096900 = 6083^2 + 4370^2 .

It is a cyclic number.

It is not a de Polignac number, because 56099789 - 2²⁴ = 39322573 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56099789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56099749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28049894 + 28049895.

It is an arithmetic number, because the mean of its divisors is an integer number (28049895).

Almost surely, 2^56099789 is an apocalyptic number.

It is an amenable number.

56099789 is a deficient number, since it is larger than the sum of its proper divisors (1).

56099789 is an equidigital number, since it uses as much as digits as its factorization.

56099789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 56099789 is about 7489.9792389565. The cubic root of 56099789 is about 382.8133510985.

The spelling of 56099789 in words is "fifty-six million, ninety-nine thousand, seven hundred eighty-nine".