55500055055555 has 72 divisors (see below), whose sum is σ = 77785259874000. Its totient is φ = 37979208115200.

The previous prime is 55500055055537. The next prime is 55500055055587. The reversal of 55500055055555 is 55555055000555.

It is not a de Polignac number, because 55500055055555 - 2¹⁶ = 55500054990019 is a prime.

It is a super-2 number, since 2×55500055055555² (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 71 ways as a sum of consecutive naturals, for example, 687275321 + ... + 687356069.

Almost surely, 2^{55500055055555} is an apocalyptic number.

55500055055555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55500055055555 is a deficient number, since it is larger than the sum of its proper divisors (22285204818445).

55500055055555 is a wasteful number, since it uses less digits than its factorization.

55500055055555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84741 (or 84713 counting only the distinct ones).

The product of its (nonzero) digits is 9765625, while the sum is 50.

The spelling of 55500055055555 in words is "fifty-five trillion, five hundred billion, fifty-five million, fifty-five thousand, five hundred fifty-five".