25280438 has 16 divisors (see below), whose sum is σ = 39813120. Its totient is φ = 12023400.

The previous prime is 25280429. The next prime is 25280443. The reversal of 25280438 is 83408252.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (2488320).

Almost surely, 2^25280438 is an apocalyptic number.

25280438 is a deficient number, since it is larger than the sum of its proper divisors (14532682).

25280438 is a wasteful number, since it uses less digits than its factorization.

25280438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7003.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 25280438 is about 5027.9655925633. The cubic root of 25280438 is about 293.4910518338.

The spelling of 25280438 in words is "twenty-five million, two hundred eighty thousand, four hundred thirty-eight".