20031325 has 12 divisors (see below), whose sum is σ = 25211680. Its totient is φ = 15784560.

The previous prime is 20031313. The next prime is 20031331. The reversal of 20031325 is 52313002.

It is not a de Polignac number, because 20031325 - 2⁵ = 20031293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20031299 and 20031308.

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, 4305 + ... + 7654.

Almost surely, 2^20031325 is an apocalyptic number.

20031325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20031325 is a deficient number, since it is larger than the sum of its proper divisors (5180355).

20031325 is a wasteful number, since it uses less digits than its factorization.

20031325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12036 (or 12031 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20031325 is about 4475.6368261958. The cubic root of 20031325 is about 271.5834029564.

Adding to 20031325 its reverse (52313002), we get a palindrome (72344327).

The spelling of 20031325 in words is "twenty million, thirty-one thousand, three hundred twenty-five".