20325945 has 8 divisors (see below), whose sum is σ = 32521536. Its totient is φ = 10840496.

The previous prime is 20325941. The next prime is 20325961. The reversal of 20325945 is 54952302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20325945 - 2² = 20325941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20325941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677517 + ... + 677546.

It is an arithmetic number, because the mean of its divisors is an integer number (4065192).

Almost surely, 2^20325945 is an apocalyptic number.

It is an amenable number.

20325945 is a deficient number, since it is larger than the sum of its proper divisors (12195591).

20325945 is a wasteful number, since it uses less digits than its factorization.

20325945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355071.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 20325945 is about 4508.4304364158. The cubic root of 20325945 is about 272.9084075999.

The spelling of 20325945 in words is "twenty million, three hundred twenty-five thousand, nine hundred forty-five".