50055055055550 has 72 divisors (see below), whose sum is σ = 134533844378856. Its totient is φ = 13342794189120.

The previous prime is 50055055055507. The next prime is 50055055055561. The reversal of 50055055055550 is 5555055055005.

It is a super-2 number, since 2×50055055055550² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 50055055055496 and 50055055055505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20600124 + ... + 22901423.

It is an arithmetic number, because the mean of its divisors is an integer number (1868525616373).

Almost surely, 2^{50055055055550} is an apocalyptic number.

50055055055550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50055055055550 is an abundant number, since it is smaller than the sum of its proper divisors (84478789323306).

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

50055055055550 is a wasteful number, since it uses less digits than its factorization.

50055055055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43504122 (or 43504114 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 50055055055550 in words is "fifty trillion, fifty-five billion, fifty-five million, fifty-five thousand, five hundred fifty".