55995407403839 has 2 divisors, whose sum is σ = 55995407403840. Its totient is φ = 55995407403838.

The previous prime is 55995407403739. The next prime is 55995407403893. The reversal of 55995407403839 is 93830470459955.

Together with next prime (55995407403893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55995407403839 - 2⁸ = 55995407403583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55995407403739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27997703701919 + 27997703701920.

It is an arithmetic number, because the mean of its divisors is an integer number (27997703701920).

Almost surely, 2^{55995407403839} is an apocalyptic number.

55995407403839 is a deficient number, since it is larger than the sum of its proper divisors (1).

55995407403839 is an equidigital number, since it uses as much as digits as its factorization.

55995407403839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832000, while the sum is 71.

The spelling of 55995407403839 in words is "fifty-five trillion, nine hundred ninety-five billion, four hundred seven million, four hundred three thousand, eight hundred thirty-nine".