55999079 has 2 divisors, whose sum is σ = 55999080. Its totient is φ = 55999078.

The previous prime is 55999063. The next prime is 55999121. The reversal of 55999079 is 97099955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55999079 - 2⁴ = 55999063 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 55999079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55999379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27999539 + 27999540.

It is an arithmetic number, because the mean of its divisors is an integer number (27999540).

Almost surely, 2^55999079 is an apocalyptic number.

55999079 is a deficient number, since it is larger than the sum of its proper divisors (1).

55999079 is an equidigital number, since it uses as much as digits as its factorization.

55999079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1148175, while the sum is 53.

The square root of 55999079 is about 7483.2532363939. The cubic root of 55999079 is about 382.5841391506.

The spelling of 55999079 in words is "fifty-five million, nine hundred ninety-nine thousand, seventy-nine".