505352220 has 48 divisors (see below), whose sum is σ = 1418514720. Its totient is φ = 134424576.

The previous prime is 505352213. The next prime is 505352261. The reversal of 505352220 is 22253505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14244 + ... + 34836.

It is an arithmetic number, because the mean of its divisors is an integer number (29552390).

Almost surely, 2^505352220 is an apocalyptic number.

It is an amenable number.

505352220 is an abundant number, since it is smaller than the sum of its proper divisors (913162500).

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

505352220 is a wasteful number, since it uses less digits than its factorization.

505352220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21014 (or 21012 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 505352220 is about 22480.0404803906. The cubic root of 505352220 is about 796.5225204054.

The spelling of 505352220 in words is "five hundred five million, three hundred fifty-two thousand, two hundred twenty".