25872638 has 8 divisors (see below), whose sum is σ = 42337080. Its totient is φ = 11760280.

The previous prime is 25872619. The next prime is 25872643. The reversal of 25872638 is 83627852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25872595 and 25872604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587993 + ... + 588036.

It is an arithmetic number, because the mean of its divisors is an integer number (5292135).

Almost surely, 2^25872638 is an apocalyptic number.

25872638 is a deficient number, since it is larger than the sum of its proper divisors (16464442).

25872638 is a wasteful number, since it uses less digits than its factorization.

25872638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176042.

The product of its digits is 161280, while the sum is 41.

The square root of 25872638 is about 5086.5153101116. The cubic root of 25872638 is about 295.7650847963.

It can be divided in two parts, 2587 and 2638, that added together give a palindrome (5225).

The spelling of 25872638 in words is "twenty-five million, eight hundred seventy-two thousand, six hundred thirty-eight".