10521325 has 6 divisors (see below), whose sum is σ = 13046474. Its totient is φ = 8417040.

The previous prime is 10521311. The next prime is 10521331. The reversal of 10521325 is 52312501.

It can be written as a sum of positive squares in 3 ways, for example, as 1771561 + 8749764 = 1331^2 + 2958^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10521325 is a prime.

It is a super-2 number, since 2×10521325² = 221396559511250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210402 + ... + 210451.

Almost surely, 2^10521325 is an apocalyptic number.

It is an amenable number.

10521325 is a deficient number, since it is larger than the sum of its proper divisors (2525149).

10521325 is an equidigital number, since it uses as much as digits as its factorization.

10521325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420863 (or 420858 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 10521325 is about 3243.6591991145. The cubic root of 10521325 is about 219.1240999962.

Adding to 10521325 its reverse (52312501), we get a palindrome (62833826).

The spelling of 10521325 in words is "ten million, five hundred twenty-one thousand, three hundred twenty-five".