25190838 has 48 divisors (see below), whose sum is σ = 59950800. Its totient is φ = 7900416.

The previous prime is 25190833. The next prime is 25190843. The reversal of 25190838 is 83809152.

It is an interprime number because it is at equal distance from previous prime (25190833) and next prime (25190843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25190833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6738 + ... + 9786.

It is an arithmetic number, because the mean of its divisors is an integer number (1248975).

Almost surely, 2^25190838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25190838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29975400).

25190838 is an abundant number, since it is smaller than the sum of its proper divisors (34759962).

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

25190838 is a wasteful number, since it uses less digits than its factorization.

25190838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 25190838 is about 5019.0475192012. The cubic root of 25190838 is about 293.1439069127.

The spelling of 25190838 in words is "twenty-five million, one hundred ninety thousand, eight hundred thirty-eight".