520604253 has 40 divisors (see below), whose sum is σ = 840955808. Its totient is φ = 319057056.

The previous prime is 520604219. The next prime is 520604263. The reversal of 520604253 is 352406025.

520604253 is a `hidden beast` number, since 5 + 2 + 0 + 604 + 2 + 53 = 666.

It is not a de Polignac number, because 520604253 - 2¹⁶ = 520538717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520604263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 297126 + ... + 298872.

Almost surely, 2^520604253 is an apocalyptic number.

It is an amenable number.

520604253 is a deficient number, since it is larger than the sum of its proper divisors (320351555).

520604253 is a wasteful number, since it uses less digits than its factorization.

520604253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055 (or 2046 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 520604253 is about 22816.7537787478. The cubic root of 520604253 is about 804.4565100702.

The spelling of 520604253 in words is "five hundred twenty million, six hundred four thousand, two hundred fifty-three".