25448397 has 16 divisors (see below), whose sum is σ = 36697920. Its totient is φ = 15593472.

The previous prime is 25448383. The next prime is 25448431. The reversal of 25448397 is 79384452.

It is not a de Polignac number, because 25448397 - 2⁶ = 25448333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25448347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8754 + ... + 11292.

It is an arithmetic number, because the mean of its divisors is an integer number (2293620).

Almost surely, 2^25448397 is an apocalyptic number.

It is an amenable number.

25448397 is a deficient number, since it is larger than the sum of its proper divisors (11249523).

25448397 is a wasteful number, since it uses less digits than its factorization.

25448397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812.

The product of its digits is 241920, while the sum is 42.

The square root of 25448397 is about 5044.6404232611. The cubic root of 25448397 is about 294.1395861760.

The spelling of 25448397 in words is "twenty-five million, four hundred forty-eight thousand, three hundred ninety-seven".