55233626550 has 24 divisors (see below), whose sum is σ = 136979394216. Its totient is φ = 14728967040.

The previous prime is 55233626537. The next prime is 55233626573. The reversal of 55233626550 is 5562633255.

55233626550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184111939 + ... + 184112238.

It is an arithmetic number, because the mean of its divisors is an integer number (5707474759).

Almost surely, 2^55233626550 is an apocalyptic number.

55233626550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55233626550 is an abundant number, since it is smaller than the sum of its proper divisors (81745767666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55233626550 is a wasteful number, since it uses less digits than its factorization.

55233626550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368224192 (or 368224187 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 42.

The spelling of 55233626550 in words is "fifty-five billion, two hundred thirty-three million, six hundred twenty-six thousand, five hundred fifty".