505213130520 has 96 divisors (see below), whose sum is σ = 1876505922720. Its totient is φ = 115477286400.

The previous prime is 505213130519. The next prime is 505213130593. The reversal of 505213130520 is 25031312505.

It is a happy number.

505213130520 is a `hidden beast` number, since 5 + 0 + 5 + 2 + 1 + 3 + 130 + 520 = 666.

It is a super-3 number, since 3×505213130520³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100238181 + ... + 100243220.

It is an arithmetic number, because the mean of its divisors is an integer number (19546936695).

Almost surely, 2^505213130520 is an apocalyptic number.

It is an amenable number.

505213130520 is an abundant number, since it is smaller than the sum of its proper divisors (1371292792200).

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

505213130520 is a wasteful number, since it uses less digits than its factorization.

505213130520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200481425 (or 200481418 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 505213130520 in words is "five hundred five billion, two hundred thirteen million, one hundred thirty thousand, five hundred twenty".