25448479 has 8 divisors (see below), whose sum is σ = 29703168. Its totient is φ = 21348600.

The previous prime is 25448477. The next prime is 25448491. The reversal of 25448479 is 97484452.

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

It is not a de Polignac number, because 25448479 - 2¹ = 25448477 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 (25448471) 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, 38347 + ... + 39004.

It is an arithmetic number, because the mean of its divisors is an integer number (3712896).

Almost surely, 2^25448479 is an apocalyptic number.

25448479 is a deficient number, since it is larger than the sum of its proper divisors (4254689).

25448479 is an equidigital number, since it uses as much as digits as its factorization.

25448479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77405.

The product of its digits is 322560, while the sum is 43.

The square root of 25448479 is about 5044.6485506921. The cubic root of 25448479 is about 294.1399021019.

The spelling of 25448479 in words is "twenty-five million, four hundred forty-eight thousand, four hundred seventy-nine".