55031330305 has 16 divisors (see below), whose sum is σ = 78752911104. Its totient is φ = 36095083200.

The previous prime is 55031330281. The next prime is 55031330327. The reversal of 55031330305 is 50303313055.

It is not a de Polignac number, because 55031330305 - 2²⁷ = 54897112577 is a prime.

It is a super-2 number, since 2×55031330305² (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, 34180146 + ... + 34181755.

It is an arithmetic number, because the mean of its divisors is an integer number (4922056944).

Almost surely, 2^55031330305 is an apocalyptic number.

It is an amenable number.

55031330305 is a deficient number, since it is larger than the sum of its proper divisors (23721580799).

55031330305 is a wasteful number, since it uses less digits than its factorization.

55031330305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68361936.

The product of its (nonzero) digits is 10125, while the sum is 28.

The spelling of 55031330305 in words is "fifty-five billion, thirty-one million, three hundred thirty thousand, three hundred five".