55111050050 has 48 divisors (see below), whose sum is σ = 117739190400. Its totient is φ = 18800242560.

The previous prime is 55111049999. The next prime is 55111050103. The reversal of 55111050050 is 5005011155.

It is a happy number.

It is a super-2 number, since 2×55111050050² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55111049998 and 55111050025.

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, 325979 + ... + 465278.

It is an arithmetic number, because the mean of its divisors is an integer number (2452899800).

Almost surely, 2^55111050050 is an apocalyptic number.

55111050050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55111050050 is an abundant number, since it is smaller than the sum of its proper divisors (62628140350).

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

55111050050 is a wasteful number, since it uses less digits than its factorization.

55111050050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791475 (or 791470 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

The spelling of 55111050050 in words is "fifty-five billion, one hundred eleven million, fifty thousand, fifty".