25448665 has 16 divisors (see below), whose sum is σ = 33742080. Its totient is φ = 18270720.

The previous prime is 25448653. The next prime is 25448681. The reversal of 25448665 is 56684452.

It is not a de Polignac number, because 25448665 - 2⁹ = 25448153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417 + ... + 7273.

It is an arithmetic number, because the mean of its divisors is an integer number (2108880).

Almost surely, 2^25448665 is an apocalyptic number.

It is an amenable number.

25448665 is a deficient number, since it is larger than the sum of its proper divisors (8293415).

25448665 is a wasteful number, since it uses less digits than its factorization.

25448665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952.

The product of its digits is 230400, while the sum is 40.

The square root of 25448665 is about 5044.6669860358. Note that the first 3 decimals coincide. The cubic root of 25448665 is about 294.1406187117.

The spelling of 25448665 in words is "twenty-five million, four hundred forty-eight thousand, six hundred sixty-five".