55500505502999 has 4 divisors (see below), whose sum is σ = 55514045518200. Its totient is φ = 55486965487800.

The previous prime is 55500505502963. The next prime is 55500505503071. The reversal of 55500505502999 is 99920550500555.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55500505502999 - 2²⁸ = 55500237067543 is a prime.

It is a super-2 number, since 2×55500505502999² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500505501999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6770001452 + ... + 6770009649.

It is an arithmetic number, because the mean of its divisors is an integer number (13878511379550).

Almost surely, 2^{55500505502999} is an apocalyptic number.

55500505502999 is a deficient number, since it is larger than the sum of its proper divisors (13540015201).

55500505502999 is a wasteful number, since it uses less digits than its factorization.

55500505502999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13540015200.

The product of its (nonzero) digits is 22781250, while the sum is 59.

The spelling of 55500505502999 in words is "fifty-five trillion, five hundred billion, five hundred five million, five hundred two thousand, nine hundred ninety-nine".