25838688 has 48 divisors (see below), whose sum is σ = 68705280. Its totient is φ = 8501376.

The previous prime is 25838669. The next prime is 25838707. The reversal of 25838688 is 88683852.

It is an interprime number because it is at equal distance from previous prime (25838669) and next prime (25838707).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×25838688² = 1335275595122688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 5881 + ... + 9287.

It is an arithmetic number, because the mean of its divisors is an integer number (1431360).

Almost surely, 2^25838688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25838688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34352640).

25838688 is an abundant number, since it is smaller than the sum of its proper divisors (42866592).

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

25838688 is a wasteful number, since it uses less digits than its factorization.

25838688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499 (or 3491 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The square root of 25838688 is about 5083.1769593434. The cubic root of 25838688 is about 295.6356608098.

The spelling of 25838688 in words is "twenty-five million, eight hundred thirty-eight thousand, six hundred eighty-eight".