521852972 has 6 divisors (see below), whose sum is σ = 913242708. Its totient is φ = 260926484.

The previous prime is 521852971. The next prime is 521853001. The reversal of 521852972 is 279258125.

It is not an unprimeable number, because it can be changed into a prime (521852971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65231618 + ... + 65231625.

It is an arithmetic number, because the mean of its divisors is an integer number (152207118).

Almost surely, 2^521852972 is an apocalyptic number.

It is an amenable number.

521852972 is a deficient number, since it is larger than the sum of its proper divisors (391389736).

521852972 is a wasteful number, since it uses less digits than its factorization.

521852972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130463247 (or 130463245 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 521852972 is about 22844.1014706204. The cubic root of 521852972 is about 805.0991850834.

The spelling of 521852972 in words is "five hundred twenty-one million, eight hundred fifty-two thousand, nine hundred seventy-two".