55979366407 has 2 divisors, whose sum is σ = 55979366408. Its totient is φ = 55979366406.

The previous prime is 55979366389. The next prime is 55979366411. The reversal of 55979366407 is 70466397955.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55979366407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55979346407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27989683203 + 27989683204.

It is an arithmetic number, because the mean of its divisors is an integer number (27989683204).

Almost surely, 2^55979366407 is an apocalyptic number.

55979366407 is a deficient number, since it is larger than the sum of its proper divisors (1).

55979366407 is an equidigital number, since it uses as much as digits as its factorization.

55979366407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42865200, while the sum is 61.

The spelling of 55979366407 in words is "fifty-five billion, nine hundred seventy-nine million, three hundred sixty-six thousand, four hundred seven".