25790000 has 50 divisors (see below), whose sum is σ = 62464380. Its totient is φ = 10312000.

The previous prime is 25789997. The next prime is 25790027. The reversal of 25790000 is 9752.

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8711 + ... + 11289.

Almost surely, 2^25790000 is an apocalyptic number.

25790000 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 25790000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31232190).

25790000 is an abundant number, since it is smaller than the sum of its proper divisors (36674380).

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

25790000 is an equidigital number, since it uses as much as digits as its factorization.

25790000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607 (or 2586 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 25790000 is about 5078.3855702378. The cubic root of 25790000 is about 295.4498546862.

Adding to 25790000 its reverse (9752), we get a palindrome (25799752).

The spelling of 25790000 in words is "twenty-five million, seven hundred ninety thousand".