55502511125509 has 32 divisors (see below), whose sum is σ = 67865824454400. Its totient is φ = 44393433039360.

The previous prime is 55502511125473. The next prime is 55502511125531. The reversal of 55502511125509 is 90552111520555.

It is a cyclic number.

It is not a de Polignac number, because 55502511125509 - 2³¹ = 55500363641861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55502511125599) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43667694 + ... + 44920735.

It is an arithmetic number, because the mean of its divisors is an integer number (2120807014200).

Almost surely, 2^{55502511125509} is an apocalyptic number.

55502511125509 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

55502511125509 is a deficient number, since it is larger than the sum of its proper divisors (12363313328891).

55502511125509 is a wasteful number, since it uses less digits than its factorization.

55502511125509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88588573.

The product of its (nonzero) digits is 562500, while the sum is 46.

The spelling of 55502511125509 in words is "fifty-five trillion, five hundred two billion, five hundred eleven million, one hundred twenty-five thousand, five hundred nine".