55050555550 has 24 divisors (see below), whose sum is σ = 102411304632. Its totient is φ = 22016508000.

The previous prime is 55050555491. The next prime is 55050555587. The reversal of 55050555550 is 5555505055.

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, 216760 + ... + 396340.

It is an arithmetic number, because the mean of its divisors is an integer number (4267137693).

Almost surely, 2^55050555550 is an apocalyptic number.

55050555550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55050555550 is a deficient number, since it is larger than the sum of its proper divisors (47360749082).

55050555550 is a wasteful number, since it uses less digits than its factorization.

55050555550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185724 (or 185719 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55050555550 in words is "fifty-five billion, fifty million, five hundred fifty-five thousand, five hundred fifty".