25906448 has 10 divisors (see below), whose sum is σ = 50193774. Its totient is φ = 12953216.

The previous prime is 25906427. The next prime is 25906451. The reversal of 25906448 is 84460952.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 10445824 = 3932^2 + 3232^2 .

It is a super-2 number, since 2×25906448² = 1342288095953408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809561 + ... + 809592.

Almost surely, 2^25906448 is an apocalyptic number.

It is an amenable number.

25906448 is a deficient number, since it is larger than the sum of its proper divisors (24287326).

25906448 is a wasteful number, since it uses less digits than its factorization.

25906448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619161 (or 1619155 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 25906448 is about 5089.8377184346. The cubic root of 25906448 is about 295.8938626040.

The spelling of 25906448 in words is "twenty-five million, nine hundred six thousand, four hundred forty-eight".