521213036 has 12 divisors (see below), whose sum is σ = 927076080. Its totient is φ = 256334160.

The previous prime is 521212999. The next prime is 521213057. The reversal of 521213036 is 630312125.

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, 1067816 + ... + 1068303.

It is an arithmetic number, because the mean of its divisors is an integer number (77256340).

Almost surely, 2^521213036 is an apocalyptic number.

It is an amenable number.

521213036 is a deficient number, since it is larger than the sum of its proper divisors (405863044).

521213036 is a wasteful number, since it uses less digits than its factorization.

521213036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136184 (or 2136182 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 521213036 is about 22830.0905823871. The cubic root of 521213036 is about 804.7699590876.

The spelling of 521213036 in words is "five hundred twenty-one million, two hundred thirteen thousand, thirty-six".