55864904425139 has 2 divisors, whose sum is σ = 55864904425140. Its totient is φ = 55864904425138.

The previous prime is 55864904425133. The next prime is 55864904425151. The reversal of 55864904425139 is 93152440946855.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55864904425139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55864904425133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27932452212569 + 27932452212570.

It is an arithmetic number, because the mean of its divisors is an integer number (27932452212570).

Almost surely, 2^{55864904425139} is an apocalyptic number.

55864904425139 is a deficient number, since it is larger than the sum of its proper divisors (1).

55864904425139 is an equidigital number, since it uses as much as digits as its factorization.

55864904425139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624000, while the sum is 65.

The spelling of 55864904425139 in words is "fifty-five trillion, eight hundred sixty-four billion, nine hundred four million, four hundred twenty-five thousand, one hundred thirty-nine".