50111055550 has 48 divisors (see below), whose sum is σ = 98771155920. Its totient is φ = 18849692160.

The previous prime is 50111055517. The next prime is 50111055551. The reversal of 50111055550 is 5555011105.

It is a super-2 number, since 2×50111055550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50111055551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027621 + ... + 1075279.

It is an arithmetic number, because the mean of its divisors is an integer number (2057732415).

Almost surely, 2^50111055550 is an apocalyptic number.

50111055550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50111055550 is a deficient number, since it is larger than the sum of its proper divisors (48660100370).

50111055550 is a wasteful number, since it uses less digits than its factorization.

50111055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48925 (or 48920 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 28.

Adding to 50111055550 its reverse (5555011105), we get a palindrome (55666066655).

The spelling of 50111055550 in words is "fifty billion, one hundred eleven million, fifty-five thousand, five hundred fifty".