520208253 has 12 divisors (see below), whose sum is σ = 751690368. Its totient is φ = 346677000.

The previous prime is 520208237. The next prime is 520208263. The reversal of 520208253 is 352802025.

It is not a de Polignac number, because 520208253 - 2⁴ = 520208237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520208203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19378 + ... + 37628.

It is an arithmetic number, because the mean of its divisors is an integer number (62640864).

Almost surely, 2^520208253 is an apocalyptic number.

It is an amenable number.

520208253 is a deficient number, since it is larger than the sum of its proper divisors (231482115).

520208253 is a wasteful number, since it uses less digits than its factorization.

520208253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21424 (or 21421 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 520208253 is about 22808.0742939863. The cubic root of 520208253 is about 804.2524871597.

The spelling of 520208253 in words is "five hundred twenty million, two hundred eight thousand, two hundred fifty-three".