55595812099 has 4 divisors (see below), whose sum is σ = 55722454480. Its totient is φ = 55469169720.

The previous prime is 55595812073. The next prime is 55595812117. The reversal of 55595812099 is 99021859555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99021859555 = 5 ⋅19804371911.

It is a cyclic number.

It is not a de Polignac number, because 55595812099 - 2⁵ = 55595812067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55595812399) 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, 63320532 + ... + 63321409.

It is an arithmetic number, because the mean of its divisors is an integer number (13930613620).

Almost surely, 2^55595812099 is an apocalyptic number.

55595812099 is a deficient number, since it is larger than the sum of its proper divisors (126642381).

55595812099 is a wasteful number, since it uses less digits than its factorization.

55595812099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126642380.

The product of its (nonzero) digits is 7290000, while the sum is 58.

The spelling of 55595812099 in words is "fifty-five billion, five hundred ninety-five million, eight hundred twelve thousand, ninety-nine".