5551000055555 has 4 divisors (see below), whose sum is σ = 6661200066672. Its totient is φ = 4440800044440.

The previous prime is 5551000055543. The next prime is 5551000055599. The reversal of 5551000055555 is 5555500001555.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5551000055555 - 2⁴ = 5551000055539 is a prime.

It is a super-2 number, since 2×5551000055555² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555100005551 + ... + 555100005560.

It is an arithmetic number, because the mean of its divisors is an integer number (1665300016668).

Almost surely, 2^{5551000055555} is an apocalyptic number.

5551000055555 is a deficient number, since it is larger than the sum of its proper divisors (1110200011117).

5551000055555 is a wasteful number, since it uses less digits than its factorization.

5551000055555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110200011116.

The product of its (nonzero) digits is 390625, while the sum is 41.

The spelling of 5551000055555 in words is "five trillion, five hundred fifty-one billion, fifty-five thousand, five hundred fifty-five".