520255288 has 64 divisors (see below), whose sum is σ = 1136540160. Its totient is φ = 218668416.

The previous prime is 520255243. The next prime is 520255289. The reversal of 520255288 is 882552025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520255289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803781 + ... + 804427.

It is an arithmetic number, because the mean of its divisors is an integer number (17758440).

Almost surely, 2^520255288 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 520255288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568270080).

520255288 is an abundant number, since it is smaller than the sum of its proper divisors (616284872).

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

520255288 is a wasteful number, since it uses less digits than its factorization.

520255288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 520255288 is about 22809.1053748278. The cubic root of 520255288 is about 804.2767254498.

The spelling of 520255288 in words is "five hundred twenty million, two hundred fifty-five thousand, two hundred eighty-eight".