25825390 has 16 divisors (see below), whose sum is σ = 46675440. Its totient is φ = 10288000.

The previous prime is 25825369. The next prime is 25825391. The reversal of 25825390 is 9352852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25825391) 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, 2635 + ... + 7654.

It is an arithmetic number, because the mean of its divisors is an integer number (2917215).

Almost surely, 2^25825390 is an apocalyptic number.

25825390 is a deficient number, since it is larger than the sum of its proper divisors (20850050).

25825390 is a wasteful number, since it uses less digits than its factorization.

25825390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10547.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 25825390 is about 5081.8687507648. The cubic root of 25825390 is about 295.5849353545.

The spelling of 25825390 in words is "twenty-five million, eight hundred twenty-five thousand, three hundred ninety".