505051215220 has 24 divisors (see below), whose sum is σ = 1068237828000. Its totient is φ = 200567100192.

The previous prime is 505051215169. The next prime is 505051215281. The reversal of 505051215220 is 22512150505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90833770 + ... + 90839329.

It is an arithmetic number, because the mean of its divisors is an integer number (44509909500).

Almost surely, 2^505051215220 is an apocalyptic number.

It is an amenable number.

505051215220 is an abundant number, since it is smaller than the sum of its proper divisors (563186612780).

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

505051215220 is a wasteful number, since it uses less digits than its factorization.

505051215220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181673247 (or 181673245 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

Adding to 505051215220 its reverse (22512150505), we get a palindrome (527563365725).

The spelling of 505051215220 in words is "five hundred five billion, fifty-one million, two hundred fifteen thousand, two hundred twenty".