520781248 has 28 divisors (see below), whose sum is σ = 1112921320. Its totient is φ = 240360192.

The previous prime is 520781227. The next prime is 520781257. The reversal of 520781248 is 842187025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312138 + ... + 313801.

It is an arithmetic number, because the mean of its divisors is an integer number (39747190).

Almost surely, 2^520781248 is an apocalyptic number.

It is an amenable number.

520781248 is an abundant number, since it is smaller than the sum of its proper divisors (592140072).

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

520781248 is a wasteful number, since it uses less digits than its factorization.

520781248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625964 (or 625954 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 520781248 is about 22820.6320683718. The cubic root of 520781248 is about 804.5476660978.

The spelling of 520781248 in words is "five hundred twenty million, seven hundred eighty-one thousand, two hundred forty-eight".