20322325 has 12 divisors (see below), whose sum is σ = 25311748. Its totient is φ = 16185600.

The previous prime is 20322307. The next prime is 20322331. The reversal of 20322325 is 52322302.

It can be written as a sum of positive squares in 6 ways, for example, as 2149156 + 18173169 = 1466^2 + 4263^2 .

It is not a de Polignac number, because 20322325 - 2¹¹ = 20320277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4339 + ... + 7711.

Almost surely, 2^20322325 is an apocalyptic number.

20322325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20322325 is the 2410-th nonagonal number.

It is an amenable number.

20322325 is a deficient number, since it is larger than the sum of its proper divisors (4989423).

20322325 is a wasteful number, since it uses less digits than its factorization.

20322325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20322325 is about 4508.0289484430. The cubic root of 20322325 is about 272.8922052029.

Adding to 20322325 its reverse (52322302), we get a palindrome (72644627).

The spelling of 20322325 in words is "twenty million, three hundred twenty-two thousand, three hundred twenty-five".