55505505550005 has 32 divisors (see below), whose sum is σ = 112773090643200. Its totient is φ = 25373945393856.

The previous prime is 55505505549943. The next prime is 55505505550021. The reversal of 55505505550005 is 50005550550555.

It is not a de Polignac number, because 55505505550005 - 2⁸ = 55505505549749 is a prime.

It is a super-2 number, since 2×55505505550005² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 29367991410 + ... + 29367993299.

It is an arithmetic number, because the mean of its divisors is an integer number (3524159082600).

Almost surely, 2^{55505505550005} is an apocalyptic number.

It is an amenable number.

55505505550005 is an abundant number, since it is smaller than the sum of its proper divisors (57267585093195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55505505550005 is a wasteful number, since it uses less digits than its factorization.

55505505550005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58735984730 (or 58735984724 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55505505550005 in words is "fifty-five trillion, five hundred five billion, five hundred five million, five hundred fifty thousand, five".