55550500505555 has 32 divisors (see below), whose sum is σ = 72770416459200. Its totient is φ = 40372726873600.

The previous prime is 55550500505519. The next prime is 55550500505561.

55550500505555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55550500505555 - 2¹² = 55550500501459 is a prime.

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, 598629101 + ... + 598721889.

It is an arithmetic number, because the mean of its divisors is an integer number (2274075514350).

Almost surely, 2^{55550500505555} is an apocalyptic number.

55550500505555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55550500505555 is a deficient number, since it is larger than the sum of its proper divisors (17219915953645).

55550500505555 is a wasteful number, since it uses less digits than its factorization.

55550500505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100135.

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

The spelling of 55550500505555 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred five thousand, five hundred fifty-five".