520008193 has 4 divisors (see below), whose sum is σ = 537939540. Its totient is φ = 502076848.

The previous prime is 520008157. The next prime is 520008227. The reversal of 520008193 is 391800025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 348083649 + 171924544 = 18657^2 + 13112^2 .

It is a cyclic number.

It is not a de Polignac number, because 520008193 - 2⁹ = 520007681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520000193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8965630 + ... + 8965687.

It is an arithmetic number, because the mean of its divisors is an integer number (134484885).

Almost surely, 2^520008193 is an apocalyptic number.

It is an amenable number.

520008193 is a deficient number, since it is larger than the sum of its proper divisors (17931347).

520008193 is a wasteful number, since it uses less digits than its factorization.

520008193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17931346.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 520008193 is about 22803.6881446840. The cubic root of 520008193 is about 804.1493750041.

The spelling of 520008193 in words is "five hundred twenty million, eight thousand, one hundred ninety-three".