520163250 has 64 divisors (see below), whose sum is σ = 1306416384. Its totient is φ = 137846400.

The previous prime is 520163243. The next prime is 520163309. The reversal of 520163250 is 52361025.

It is a self number, because there is not a number n which added to its sum of digits gives 520163250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123174 + ... + 127326.

It is an arithmetic number, because the mean of its divisors is an integer number (20412756).

Almost surely, 2^520163250 is an apocalyptic number.

520163250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 520163250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653208192).

520163250 is an abundant number, since it is smaller than the sum of its proper divisors (786253134).

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

520163250 is a wasteful number, since it uses less digits than its factorization.

520163250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340 (or 4330 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 520163250 is about 22807.0877141296. The cubic root of 520163250 is about 804.2292946413.

The spelling of 520163250 in words is "five hundred twenty million, one hundred sixty-three thousand, two hundred fifty".