520683254 has 72 divisors (see below), whose sum is σ = 1003088880. Its totient is φ = 198469440.

The previous prime is 520683253. The next prime is 520683281. The reversal of 520683254 is 452386025.

It is a super-2 number, since 2×520683254² = 542222101992057032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520683253) 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 35 ways as a sum of consecutive naturals, for example, 2273612 + ... + 2273840.

It is an arithmetic number, because the mean of its divisors is an integer number (13931790).

Almost surely, 2^520683254 is an apocalyptic number.

520683254 is a deficient number, since it is larger than the sum of its proper divisors (482405626).

520683254 is a wasteful number, since it uses less digits than its factorization.

520683254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 520683254 is about 22818.4849190300. The cubic root of 520683254 is about 804.4971997457.

The spelling of 520683254 in words is "five hundred twenty million, six hundred eighty-three thousand, two hundred fifty-four".