25828470 has 64 divisors (see below), whose sum is σ = 69785280. Its totient is φ = 6881760.

The previous prime is 25828463. The next prime is 25828477. The reversal of 25828470 is 7482852.

It is a happy number.

25828470 is a `hidden beast` number, since 2 + 582 + 8 + 4 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (25828463) and next prime (25828477).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25828477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21280 + ... + 22460.

It is an arithmetic number, because the mean of its divisors is an integer number (1090395).

Almost surely, 2^25828470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25828470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34892640).

25828470 is an abundant number, since it is smaller than the sum of its proper divisors (43956810).

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

25828470 is an equidigital number, since it uses as much as digits as its factorization.

25828470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 25828470 is about 5082.1717798595. The cubic root of 25828470 is about 295.5966856180.

The spelling of 25828470 in words is "twenty-five million, eight hundred twenty-eight thousand, four hundred seventy".