55064993939 has 2 divisors, whose sum is σ = 55064993940. Its totient is φ = 55064993938.

The previous prime is 55064993917. The next prime is 55064993941. The reversal of 55064993939 is 93939946055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55064993939 is a prime.

Together with 55064993941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55064993909) 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, 27532496969 + 27532496970.

It is an arithmetic number, because the mean of its divisors is an integer number (27532496970).

Almost surely, 2^55064993939 is an apocalyptic number.

55064993939 is a deficient number, since it is larger than the sum of its proper divisors (1).

55064993939 is an equidigital number, since it uses as much as digits as its factorization.

55064993939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35429400, while the sum is 62.

The spelling of 55064993939 in words is "fifty-five billion, sixty-four million, nine hundred ninety-three thousand, nine hundred thirty-nine".