55374624673391 has 2 divisors, whose sum is σ = 55374624673392. Its totient is φ = 55374624673390.

The previous prime is 55374624673337. The next prime is 55374624673421. The reversal of 55374624673391 is 19337642647355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55374624673391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55374624679391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27687312336695 + 27687312336696.

It is an arithmetic number, because the mean of its divisors is an integer number (27687312336696).

Almost surely, 2^{55374624673391} is an apocalyptic number.

55374624673391 is a deficient number, since it is larger than the sum of its proper divisors (1).

55374624673391 is an equidigital number, since it uses as much as digits as its factorization.

55374624673391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 342921600, while the sum is 65.

The spelling of 55374624673391 in words is "fifty-five trillion, three hundred seventy-four billion, six hundred twenty-four million, six hundred seventy-three thousand, three hundred ninety-one".