50555505550 has 48 divisors (see below), whose sum is σ = 102603147264. Its totient is φ = 18379980000.

The previous prime is 50555505527. The next prime is 50555505589. The reversal of 50555505550 is 5550555505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4994995 + ... + 5005105.

It is an arithmetic number, because the mean of its divisors is an integer number (2137565568).

Almost surely, 2^50555505550 is an apocalyptic number.

50555505550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50555505550 is an abundant number, since it is smaller than the sum of its proper divisors (52047641714).

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

50555505550 is a wasteful number, since it uses less digits than its factorization.

50555505550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19225 (or 19220 counting only the distinct ones).

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

The spelling of 50555505550 in words is "fifty billion, five hundred fifty-five million, five hundred five thousand, five hundred fifty".