520075220 has 288 divisors, whose sum is σ = 1489259520. Its totient is φ = 150958080.

The previous prime is 520075211. The next prime is 520075229. The reversal of 520075220 is 22570025.

It is an interprime number because it is at equal distance from previous prime (520075211) and next prime (520075229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520075229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9812714 + ... + 9812766.

It is an arithmetic number, because the mean of its divisors is an integer number (5171040).

Almost surely, 2^520075220 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 520075220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744629760).

520075220 is an abundant number, since it is smaller than the sum of its proper divisors (969184300).

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

520075220 is a wasteful number, since it uses less digits than its factorization.

520075220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 520075220 is about 22805.1577499477. The cubic root of 520075220 is about 804.1839240780.

The spelling of 520075220 in words is "five hundred twenty million, seventy-five thousand, two hundred twenty".