55081958413 has 2 divisors, whose sum is σ = 55081958414. Its totient is φ = 55081958412.

The previous prime is 55081958369. The next prime is 55081958431. The reversal of 55081958413 is 31485918055.

Together with next prime (55081958431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55054521769 + 27436644 = 234637^2 + 5238^2 .

It is a cyclic number.

It is not a de Polignac number, because 55081958413 - 2²⁵ = 55048403981 is a prime.

It is a super-2 number, since 2×55081958413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55081958443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27540979206 + 27540979207.

It is an arithmetic number, because the mean of its divisors is an integer number (27540979207).

Almost surely, 2^55081958413 is an apocalyptic number.

It is an amenable number.

55081958413 is a deficient number, since it is larger than the sum of its proper divisors (1).

55081958413 is an equidigital number, since it uses as much as digits as its factorization.

55081958413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 49.

The spelling of 55081958413 in words is "fifty-five billion, eighty-one million, nine hundred fifty-eight thousand, four hundred thirteen".