55000555500500 has 24 divisors (see below), whose sum is σ = 120121213214184. Its totient is φ = 22000222200000.

The previous prime is 55000555500493. The next prime is 55000555500509. The reversal of 55000555500500 is 500555500055.

It can be written as a sum of positive squares in 4 ways, for example, as 4485932472004 + 50514623028496 = 2118002^2 + 7107364^2 .

It is a super-2 number, since 2×55000555500500² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000555500509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55000555001 + ... + 55000556000.

It is an arithmetic number, because the mean of its divisors is an integer number (5005050550591).

Almost surely, 2^{55000555500500} is an apocalyptic number.

55000555500500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55000555500500 is an abundant number, since it is smaller than the sum of its proper divisors (65120657713684).

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

55000555500500 is a wasteful number, since it uses less digits than its factorization.

55000555500500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110001111020 (or 110001111008 counting only the distinct ones).

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

The spelling of 55000555500500 in words is "fifty-five trillion, five hundred fifty-five million, five hundred thousand, five hundred".