25799238 has 48 divisors (see below), whose sum is σ = 59001696. Its totient is φ = 8131200.

The previous prime is 25799227. The next prime is 25799239. The reversal of 25799238 is 83299752.

It is a junction number, because it is equal to n+sod(n) for n = 25799193 and 25799202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25799239) 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 23 ways as a sum of consecutive naturals, for example, 41506 + ... + 42122.

It is an arithmetic number, because the mean of its divisors is an integer number (1229202).

Almost surely, 2^25799238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25799238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29500848).

25799238 is an abundant number, since it is smaller than the sum of its proper divisors (33202458).

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

25799238 is a wasteful number, since it uses less digits than its factorization.

25799238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 746 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 25799238 is about 5079.2950298245. The cubic root of 25799238 is about 295.4851272716.

The spelling of 25799238 in words is "twenty-five million, seven hundred ninety-nine thousand, two hundred thirty-eight".