20325015 has 12 divisors (see below), whose sum is σ = 35230104. Its totient is φ = 10839984.

The previous prime is 20324999. The next prime is 20325049. The reversal of 20325015 is 51052302.

It is a happy number.

It is not a de Polignac number, because 20325015 - 2⁴ = 20324999 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, 225789 + ... + 225878.

It is an arithmetic number, because the mean of its divisors is an integer number (2935842).

Almost surely, 2^20325015 is an apocalyptic number.

20325015 is a deficient number, since it is larger than the sum of its proper divisors (14905089).

20325015 is a wasteful number, since it uses less digits than its factorization.

20325015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451678 (or 451675 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 20325015 is about 4508.3272951284. The cubic root of 20325015 is about 272.9042452893.

Adding to 20325015 its reverse (51052302), we get a palindrome (71377317).

The spelling of 20325015 in words is "twenty million, three hundred twenty-five thousand, fifteen".