55155100877508 has 24 divisors (see below), whose sum is σ = 128695814493120. Its totient is φ = 18384950895520.

The previous prime is 55155100877507. The next prime is 55155100877567. The reversal of 55155100877508 is 80577800155155.

It is not an unprimeable number, because it can be changed into a prime (55155100877507) 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 7 ways as a sum of consecutive naturals, for example, 7532928 + ... + 12924983.

It is an arithmetic number, because the mean of its divisors is an integer number (5362325603880).

Almost surely, 2^{55155100877508} is an apocalyptic number.

It is an amenable number.

55155100877508 is an abundant number, since it is smaller than the sum of its proper divisors (73540713615612).

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

55155100877508 is a wasteful number, since it uses less digits than its factorization.

55155100877508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20682587 (or 20682585 counting only the distinct ones).

The product of its (nonzero) digits is 9800000, while the sum is 57.

The spelling of 55155100877508 in words is "fifty-five trillion, one hundred fifty-five billion, one hundred million, eight hundred seventy-seven thousand, five hundred eight".