25872438 has 8 divisors (see below), whose sum is σ = 51744888. Its totient is φ = 8624144.

The previous prime is 25872409. The next prime is 25872443. The reversal of 25872438 is 83427852.

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

25872438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25872396 and 25872405.

It is a congruent number.

It is an unprimeable number.

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, 2156031 + ... + 2156042.

It is an arithmetic number, because the mean of its divisors is an integer number (6468111).

Almost surely, 2^25872438 is an apocalyptic number.

25872438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25872438 is a wasteful number, since it uses less digits than its factorization.

25872438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312078.

The product of its digits is 107520, while the sum is 39.

The square root of 25872438 is about 5086.4956502488. The cubic root of 25872438 is about 295.7643226892.

The spelling of 25872438 in words is "twenty-five million, eight hundred seventy-two thousand, four hundred thirty-eight".