20325025 has 48 divisors (see below), whose sum is σ = 30684544. Its totient is φ = 13063680.

The previous prime is 20324999. The next prime is 20325049. The reversal of 20325025 is 52052302.

It is not a de Polignac number, because 20325025 - 2¹¹ = 20322977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20324993 and 20325011.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278389 + ... + 278461.

Almost surely, 2^20325025 is an apocalyptic number.

20325025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20325025 is a deficient number, since it is larger than the sum of its proper divisors (10359519).

20325025 is a wasteful number, since it uses less digits than its factorization.

20325025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20325025 is about 4508.3284041871. The cubic root of 20325025 is about 272.9042900460.

Adding to 20325025 its reverse (52052302), we get a palindrome (72377327).

The spelling of 20325025 in words is "twenty million, three hundred twenty-five thousand, twenty-five".