520202712 has 16 divisors (see below), whose sum is σ = 1300506840. Its totient is φ = 173400896.

The previous prime is 520202689. The next prime is 520202719. The reversal of 520202712 is 217202025.

It is a happy number.

It is a super-2 number, since 2×520202712² = 541221723144309888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520202719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10837533 + ... + 10837580.

Almost surely, 2^520202712 is an apocalyptic number.

It is an amenable number.

520202712 is an abundant number, since it is smaller than the sum of its proper divisors (780304128).

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

520202712 is a wasteful number, since it uses less digits than its factorization.

520202712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21675122 (or 21675118 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 520202712 is about 22807.9528235219. The cubic root of 520202712 is about 804.2496316502.

Adding to 520202712 its reverse (217202025), we get a palindrome (737404737).

The spelling of 520202712 in words is "five hundred twenty million, two hundred two thousand, seven hundred twelve".