520694924 has 12 divisors (see below), whose sum is σ = 959175000. Its totient is φ = 246644928.

The previous prime is 520694899. The next prime is 520694959. The reversal of 520694924 is 429496025.

It is a happy number.

It is a super-2 number, since 2×520694924² = 542246407758731552, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425549 + ... + 3425700.

It is an arithmetic number, because the mean of its divisors is an integer number (79931250).

Almost surely, 2^520694924 is an apocalyptic number.

It is an amenable number.

520694924 is a deficient number, since it is larger than the sum of its proper divisors (438480076).

520694924 is a wasteful number, since it uses less digits than its factorization.

520694924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6851272 (or 6851270 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 520694924 is about 22818.7406313320. The cubic root of 520694924 is about 804.5032100614.

The spelling of 520694924 in words is "five hundred twenty million, six hundred ninety-four thousand, nine hundred twenty-four".