520163390 has 32 divisors (see below), whose sum is σ = 971006400. Its totient is φ = 200461824.

The previous prime is 520163387. The next prime is 520163419. The reversal of 520163390 is 93361025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31286 + ... + 44934.

It is an arithmetic number, because the mean of its divisors is an integer number (30343950).

Almost surely, 2^520163390 is an apocalyptic number.

520163390 is a deficient number, since it is larger than the sum of its proper divisors (450843010).

520163390 is a wasteful number, since it uses less digits than its factorization.

520163390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13796.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 520163390 is about 22807.0907833507. The cubic root of 520163390 is about 804.2293667931.

The spelling of 520163390 in words is "five hundred twenty million, one hundred sixty-three thousand, three hundred ninety".