55000055055500 has 48 divisors (see below), whose sum is σ = 120422690248224. Its totient is φ = 21944606270400.

The previous prime is 55000055055469. The next prime is 55000055055557. The reversal of 55000055055500 is 555055000055.

It is a super-2 number, since 2×55000055055500² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138340682 + ... + 138737681.

It is an arithmetic number, because the mean of its divisors is an integer number (2508806046838).

Almost surely, 2^{55000055055500} is an apocalyptic number.

55000055055500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55000055055500 is an abundant number, since it is smaller than the sum of its proper divisors (65422635192724).

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

55000055055500 is a wasteful number, since it uses less digits than its factorization.

55000055055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277078779 (or 277078767 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55000055055500 in words is "fifty-five trillion, fifty-five million, fifty-five thousand, five hundred".