521713036 has 24 divisors (see below), whose sum is σ = 983994480. Its totient is φ = 240603072.

The previous prime is 521713021. The next prime is 521713057. The reversal of 521713036 is 630317125.

It is a junction number, because it is equal to n+sod(n) for n = 521712995 and 521713013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81090 + ... + 87286.

It is an arithmetic number, because the mean of its divisors is an integer number (40999770).

Almost surely, 2^521713036 is an apocalyptic number.

It is an amenable number.

521713036 is a deficient number, since it is larger than the sum of its proper divisors (462281444).

521713036 is a wasteful number, since it uses less digits than its factorization.

521713036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833 (or 7831 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 521713036 is about 22841.0384177252. The cubic root of 521713036 is about 805.0272156224.

The spelling of 521713036 in words is "five hundred twenty-one million, seven hundred thirteen thousand, thirty-six".