55555550000555 has 32 divisors (see below), whose sum is σ = 73123622208000. Its totient is φ = 40184416921600.

The previous prime is 55555550000543. The next prime is 55555550000569. The reversal of 55555550000555 is 55500005555555.

It is not a de Polignac number, because 55555550000555 - 2¹² = 55555549996459 is a prime.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4063316 + ... + 11296974.

It is an arithmetic number, because the mean of its divisors is an integer number (2285113194000).

Almost surely, 2^{55555550000555} is an apocalyptic number.

55555550000555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55555550000555 is a deficient number, since it is larger than the sum of its proper divisors (17568072207445).

55555550000555 is a wasteful number, since it uses less digits than its factorization.

55555550000555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7234435.

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

The spelling of 55555550000555 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty million, five hundred fifty-five", and thus it is an aban number.