55000545309 has 12 divisors (see below), whose sum is σ = 82007981952. Its totient is φ = 35484222600.

The previous prime is 55000545289. The next prime is 55000545377. The reversal of 55000545309 is 90354500055.

55000545309 is a `hidden beast` number, since 550 + 0 + 0 + 54 + 53 + 0 + 9 = 666.

55000545309 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 55000545309 - 2⁷ = 55000545181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000545409) 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, 98567007 + ... + 98567564.

It is an arithmetic number, because the mean of its divisors is an integer number (6833998496).

Almost surely, 2^55000545309 is an apocalyptic number.

It is an amenable number.

55000545309 is a deficient number, since it is larger than the sum of its proper divisors (27007436643).

55000545309 is a wasteful number, since it uses less digits than its factorization.

55000545309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197134608 (or 197134605 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 55000545309 in words is "fifty-five billion, five hundred forty-five thousand, three hundred nine".