55136254171 has 2 divisors, whose sum is σ = 55136254172. Its totient is φ = 55136254170.

The previous prime is 55136254163. The next prime is 55136254183. The reversal of 55136254171 is 17145263155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55136254171 - 2³ = 55136254163 is a prime.

It is a super-2 number, since 2×55136254171² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55136254111) 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, 27568127085 + 27568127086.

It is an arithmetic number, because the mean of its divisors is an integer number (27568127086).

Almost surely, 2^55136254171 is an apocalyptic number.

55136254171 is a deficient number, since it is larger than the sum of its proper divisors (1).

55136254171 is an equidigital number, since it uses as much as digits as its factorization.

55136254171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 40.

The spelling of 55136254171 in words is "fifty-five billion, one hundred thirty-six million, two hundred fifty-four thousand, one hundred seventy-one".