55100005555 has 16 divisors (see below), whose sum is σ = 76072881600. Its totient is φ = 37529281152.

The previous prime is 55100005487. The next prime is 55100005573. The reversal of 55100005555 is 55550000155.

It is a cyclic number.

It is not a de Polignac number, because 55100005555 - 2⁹ = 55100005043 is a prime.

It is a super-2 number, since 2×55100005555² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5277624 + ... + 5288053.

It is an arithmetic number, because the mean of its divisors is an integer number (4754555100).

Almost surely, 2^55100005555 is an apocalyptic number.

55100005555 is a deficient number, since it is larger than the sum of its proper divisors (20972876045).

55100005555 is a wasteful number, since it uses less digits than its factorization.

55100005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10565838.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 55100005555 in words is "fifty-five billion, one hundred million, five thousand, five hundred fifty-five".