55005500505081 has 16 divisors (see below), whose sum is σ = 83819046979584. Its totient is φ = 31431286531344.

The previous prime is 55005500505071. The next prime is 55005500505113. The reversal of 55005500505081 is 18050500550055.

It is not a de Polignac number, because 55005500505081 - 2²¹ = 55005498407929 is a prime.

It is a super-2 number, since 2×55005500505081² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55005500505061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16253091 + ... + 19343576.

It is an arithmetic number, because the mean of its divisors is an integer number (5238690436224).

Almost surely, 2^{55005500505081} is an apocalyptic number.

It is an amenable number.

55005500505081 is a deficient number, since it is larger than the sum of its proper divisors (28813546474503).

55005500505081 is a wasteful number, since it uses less digits than its factorization.

55005500505081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35670260.

The product of its (nonzero) digits is 125000, while the sum is 39.

The spelling of 55005500505081 in words is "fifty-five trillion, five billion, five hundred million, five hundred five thousand, eighty-one".