55081958369 has 2 divisors, whose sum is σ = 55081958370. Its totient is φ = 55081958368.

The previous prime is 55081958293. The next prime is 55081958413. The reversal of 55081958369 is 96385918055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41999173969 + 13082784400 = 204937^2 + 114380^2 .

It is a cyclic number.

It is not a de Polignac number, because 55081958369 - 2¹² = 55081954273 is a prime.

It is a super-2 number, since 2×55081958369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55081958069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27540979184 + 27540979185.

It is an arithmetic number, because the mean of its divisors is an integer number (27540979185).

Almost surely, 2^55081958369 is an apocalyptic number.

It is an amenable number.

55081958369 is a deficient number, since it is larger than the sum of its proper divisors (1).

55081958369 is an equidigital number, since it uses as much as digits as its factorization.

55081958369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664000, while the sum is 59.

The spelling of 55081958369 in words is "fifty-five billion, eighty-one million, nine hundred fifty-eight thousand, three hundred sixty-nine".