20045325 has 12 divisors (see below), whose sum is σ = 33141728. Its totient is φ = 10690800.

The previous prime is 20045321. The next prime is 20045327. The reversal of 20045325 is 52354002.

It is not a de Polignac number, because 20045325 - 2² = 20045321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133561 + ... + 133710.

Almost surely, 2^20045325 is an apocalyptic number.

20045325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20045325 is a deficient number, since it is larger than the sum of its proper divisors (13096403).

20045325 is a wasteful number, since it uses less digits than its factorization.

20045325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267284 (or 267279 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20045325 is about 4477.2005762530. The cubic root of 20045325 is about 271.6466585856.

Adding to 20045325 its reverse (52354002), we get a palindrome (72399327).

The spelling of 20045325 in words is "twenty million, forty-five thousand, three hundred twenty-five".