520216259 has 4 divisors (see below), whose sum is σ = 521707200. Its totient is φ = 518725320.

The previous prime is 520216247. The next prime is 520216271. The reversal of 520216259 is 952612025.

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

It is an interprime number because it is at equal distance from previous prime (520216247) and next prime (520216271).

It is a cyclic number.

It is not a de Polignac number, because 520216259 - 2¹² = 520212163 is a prime.

It is a super-2 number, since 2×520216259² = 541249912255910162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520216289) 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, 744947 + ... + 745644.

It is an arithmetic number, because the mean of its divisors is an integer number (130426800).

Almost surely, 2^520216259 is an apocalyptic number.

520216259 is a deficient number, since it is larger than the sum of its proper divisors (1490941).

520216259 is a wasteful number, since it uses less digits than its factorization.

520216259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490940.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 520216259 is about 22808.2498013329. The cubic root of 520216259 is about 804.2566129512.

The spelling of 520216259 in words is "five hundred twenty million, two hundred sixteen thousand, two hundred fifty-nine".