55501050009999 has 24 divisors (see below), whose sum is σ = 86125110185520. Its totient is φ = 31658352943360.

The previous prime is 55501050009901. The next prime is 55501050010001. The reversal of 55501050009999 is 99990005010555.

It is not a de Polignac number, because 55501050009999 - 2²⁴ = 55501033232783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55501050009299) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4496918964 + ... + 4496931305.

It is an arithmetic number, because the mean of its divisors is an integer number (3588546257730).

Almost surely, 2^{55501050009999} is an apocalyptic number.

55501050009999 is a deficient number, since it is larger than the sum of its proper divisors (30624060175521).

55501050009999 is a wasteful number, since it uses less digits than its factorization.

55501050009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993850311 (or 8993850300 counting only the distinct ones).

The product of its (nonzero) digits is 4100625, while the sum is 57.

The spelling of 55501050009999 in words is "fifty-five trillion, five hundred one billion, fifty million, nine thousand, nine hundred ninety-nine".