55305025550 has 12 divisors (see below), whose sum is σ = 102867347616. Its totient is φ = 22122010200.

The previous prime is 55305025471. The next prime is 55305025553. The reversal of 55305025550 is 5552050355.

55305025550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55305025550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305025553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553050206 + ... + 553050305.

It is an arithmetic number, because the mean of its divisors is an integer number (8572278968).

Almost surely, 2^55305025550 is an apocalyptic number.

55305025550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55305025550 is a deficient number, since it is larger than the sum of its proper divisors (47562322066).

55305025550 is a wasteful number, since it uses less digits than its factorization.

55305025550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106100523 (or 1106100518 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 55305025550 in words is "fifty-five billion, three hundred five million, twenty-five thousand, five hundred fifty".