55136254164 has 48 divisors (see below), whose sum is σ = 133616179200. Its totient is φ = 17676753120.

The previous prime is 55136254163. The next prime is 55136254171. The reversal of 55136254164 is 46145263155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55136254163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394014 + ... + 515285.

It is an arithmetic number, because the mean of its divisors is an integer number (2783670400).

Almost surely, 2^55136254164 is an apocalyptic number.

It is an amenable number.

55136254164 is an abundant number, since it is smaller than the sum of its proper divisors (78479925036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55136254164 is a wasteful number, since it uses less digits than its factorization.

55136254164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909500 (or 909498 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 55136254164 in words is "fifty-five billion, one hundred thirty-six million, two hundred fifty-four thousand, one hundred sixty-four".