520213502 has 32 divisors (see below), whose sum is σ = 839030400. Its totient is φ = 241164000.

The previous prime is 520213487. The next prime is 520213543. The reversal of 520213502 is 205312025.

It is a super-3 number, since 3×520213502³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741752 + ... + 742452.

It is an arithmetic number, because the mean of its divisors is an integer number (26219700).

Almost surely, 2^520213502 is an apocalyptic number.

520213502 is a deficient number, since it is larger than the sum of its proper divisors (318816898).

520213502 is a wasteful number, since it uses less digits than its factorization.

520213502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 520213502 is about 22808.1893625952. The cubic root of 520213502 is about 804.2551921707.

Adding to 520213502 its reverse (205312025), we get a palindrome (725525527).

The spelling of 520213502 in words is "five hundred twenty million, two hundred thirteen thousand, five hundred two".