520525012 has 36 divisors (see below), whose sum is σ = 1067157280. Its totient is φ = 217621440.

The previous prime is 520525003. The next prime is 520525037. The reversal of 520525012 is 210525025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41539 + ... + 52597.

Almost surely, 2^520525012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520525012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533578640).

520525012 is an abundant number, since it is smaller than the sum of its proper divisors (546632268).

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

520525012 is a wasteful number, since it uses less digits than its factorization.

520525012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11152 (or 11109 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 520525012 is about 22815.0172474184. The cubic root of 520525012 is about 804.4156926467.

The spelling of 520525012 in words is "five hundred twenty million, five hundred twenty-five thousand, twelve".