25525408 has 24 divisors (see below), whose sum is σ = 50525748. Its totient is φ = 12693504.

The previous prime is 25525403. The next prime is 25525421. The reversal of 25525408 is 80452552.

It can be written as a sum of positive squares in 2 ways, for example, as 25522704 + 2704 = 5052^2 + 52^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25525408.

It is not an unprimeable number, because it can be changed into a prime (25525403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4110 + ... + 8242.

Almost surely, 2^25525408 is an apocalyptic number.

It is an amenable number.

25525408 is a deficient number, since it is larger than the sum of its proper divisors (25000340).

25525408 is a wasteful number, since it uses less digits than its factorization.

25525408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336 (or 4328 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 25525408 is about 5052.2676096976. The cubic root of 25525408 is about 294.4359921733.

The spelling of 25525408 in words is "twenty-five million, five hundred twenty-five thousand, four hundred eight".