55500712550 has 24 divisors (see below), whose sum is σ = 103293555456. Its totient is φ = 22186902240.

The previous prime is 55500712543. The next prime is 55500712559. The reversal of 55500712550 is 5521700555.

55500712550 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 55500712550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500712559) 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, 250589 + ... + 416888.

It is an arithmetic number, because the mean of its divisors is an integer number (4303898144).

Almost surely, 2^55500712550 is an apocalyptic number.

55500712550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55500712550 is a deficient number, since it is larger than the sum of its proper divisors (47792842906).

55500712550 is a wasteful number, since it uses less digits than its factorization.

55500712550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669152 (or 669147 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 35.

The spelling of 55500712550 in words is "fifty-five billion, five hundred million, seven hundred twelve thousand, five hundred fifty".