505755555250 has 32 divisors (see below), whose sum is σ = 1032844804992. Its totient is φ = 183911110000.

The previous prime is 505755555233. The next prime is 505755555301. The reversal of 505755555250 is 52555557505.

It is a junction number, because it is equal to n+sod(n) for n = 505755555194 and 505755555203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91952806 + ... + 91958305.

It is an arithmetic number, because the mean of its divisors is an integer number (32276400156).

Almost surely, 2^505755555250 is an apocalyptic number.

505755555250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505755555250 is an abundant number, since it is smaller than the sum of its proper divisors (527089249742).

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

505755555250 is a wasteful number, since it uses less digits than its factorization.

505755555250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183911139 (or 183911129 counting only the distinct ones).

The product of its (nonzero) digits is 5468750, while the sum is 49.

The spelling of 505755555250 in words is "five hundred five billion, seven hundred fifty-five million, five hundred fifty-five thousand, two hundred fifty".