55505055005055 has 40 divisors (see below), whose sum is σ = 99504743976000. Its totient is φ = 29600674789824.

The previous prime is 55505055005011. The next prime is 55505055005069. The reversal of 55505055005055 is 55050055050555.

It is not a de Polignac number, because 55505055005055 - 2⁶ = 55505055004991 is a prime.

It is a super-2 number, since 2×55505055005055² (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 self number, because there is not a number n which added to its sum of digits gives 55505055005055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1269546 + ... + 10612344.

It is an arithmetic number, because the mean of its divisors is an integer number (2487618599400).

Almost surely, 2^{55505055005055} is an apocalyptic number.

55505055005055 is a deficient number, since it is larger than the sum of its proper divisors (43999688970945).

55505055005055 is a wasteful number, since it uses less digits than its factorization.

55505055005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9357485 (or 9357476 counting only the distinct ones).

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

The spelling of 55505055005055 in words is "fifty-five trillion, five hundred five billion, fifty-five million, five thousand, fifty-five".