55000504989 has 12 divisors (see below), whose sum is σ = 79889004000. Its totient is φ = 36462158664.

The previous prime is 55000504987. The next prime is 55000505023. The reversal of 55000504989 is 98940500055.

55000504989 is a `hidden beast` number, since 5 + 50 + 0 + 0 + 504 + 98 + 9 = 666.

55000504989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55000504989 - 2¹ = 55000504987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000504987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17068689 + ... + 17071910.

It is an arithmetic number, because the mean of its divisors is an integer number (6657417000).

Almost surely, 2^55000504989 is an apocalyptic number.

It is an amenable number.

55000504989 is a deficient number, since it is larger than the sum of its proper divisors (24888499011).

55000504989 is a wasteful number, since it uses less digits than its factorization.

55000504989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34140784 (or 34140781 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The spelling of 55000504989 in words is "fifty-five billion, five hundred four thousand, nine hundred eighty-nine".