25810260 has 72 divisors (see below), whose sum is σ = 84077280. Its totient is φ = 5898816.

The previous prime is 25810249. The next prime is 25810271. The reversal of 25810260 is 6201852.

It is an interprime number because it is at equal distance from previous prime (25810249) and next prime (25810271).

It is a self number, because there is not a number n which added to its sum of digits gives 25810260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1450 + ... + 7329.

It is an arithmetic number, because the mean of its divisors is an integer number (1167740).

Almost surely, 2^25810260 is an apocalyptic number.

25810260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25810260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42038640).

25810260 is an abundant number, since it is smaller than the sum of its proper divisors (58267020).

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

25810260 is a wasteful number, since it uses less digits than its factorization.

25810260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805 (or 8796 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 25810260 is about 5080.3799070542. The cubic root of 25810260 is about 295.5272005218.

The spelling of 25810260 in words is "twenty-five million, eight hundred ten thousand, two hundred sixty".