55555000550555 has 24 divisors (see below), whose sum is σ = 73279115414736. Its totient is φ = 40402748738880.

The previous prime is 55555000550551. The next prime is 55555000550593. The reversal of 55555000550555 is 55505500055555.

It is not a de Polignac number, because 55555000550555 - 2² = 55555000550551 is a prime.

It is a super-2 number, since 2×55555000550555² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55555000550551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27190832 + ... + 29162498.

It is an arithmetic number, because the mean of its divisors is an integer number (3053296475614).

Almost surely, 2^{55555000550555} is an apocalyptic number.

55555000550555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55555000550555 is a deficient number, since it is larger than the sum of its proper divisors (17724114864181).

55555000550555 is a wasteful number, since it uses less digits than its factorization.

55555000550555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018267 (or 2018256 counting only the distinct ones).

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

The spelling of 55555000550555 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty thousand, five hundred fifty-five".