50551113550 has 48 divisors (see below), whose sum is σ = 107490798720. Its totient is φ = 17326395360.

The previous prime is 50551113533. The next prime is 50551113583. The reversal of 50551113550 is 5531115505.

50551113550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×50551113550² (a number of 22 digits) contains 22 as substring.

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, 1192621 + ... + 1234279.

It is an arithmetic number, because the mean of its divisors is an integer number (2239391640).

Almost surely, 2^50551113550 is an apocalyptic number.

50551113550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50551113550 is an abundant number, since it is smaller than the sum of its proper divisors (56939685170).

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

50551113550 is a wasteful number, since it uses less digits than its factorization.

50551113550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45145 (or 45140 counting only the distinct ones).

The product of its (nonzero) digits is 9375, while the sum is 31.

The spelling of 50551113550 in words is "fifty billion, five hundred fifty-one million, one hundred thirteen thousand, five hundred fifty".