521325200002 has 4 divisors (see below), whose sum is σ = 781987800006. Its totient is φ = 260662600000.

The previous prime is 521325199991. The next prime is 521325200003. The reversal of 521325200002 is 200002523125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 264824481321 + 256500718681 = 514611^2 + 506459^2 .

It is not an unprimeable number, because it can be changed into a prime (521325200003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130331299999 + ... + 130331300002.

Almost surely, 2^521325200002 is an apocalyptic number.

521325200002 is a deficient number, since it is larger than the sum of its proper divisors (260662600004).

521325200002 is a wasteful number, since it uses less digits than its factorization.

521325200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260662600003.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 521325200002 its reverse (200002523125), we get a palindrome (721327723127).

The spelling of 521325200002 in words is "five hundred twenty-one billion, three hundred twenty-five million, two hundred thousand, two".