521325196 has 24 divisors (see below), whose sum is σ = 1103983776. Its totient is φ = 210282240.

The previous prime is 521325169. The next prime is 521325283. The reversal of 521325196 is 691523125.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 547135 + ... + 548086.

It is an arithmetic number, because the mean of its divisors is an integer number (45999324).

Almost surely, 2^521325196 is an apocalyptic number.

It is an amenable number.

521325196 is an abundant number, since it is smaller than the sum of its proper divisors (582658580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521325196 is a wasteful number, since it uses less digits than its factorization.

521325196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095249 (or 1095247 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 521325196 is about 22832.5468575015. The cubic root of 521325196 is about 804.8276811824.

The spelling of 521325196 in words is "five hundred twenty-one million, three hundred twenty-five thousand, one hundred ninety-six".