25930000 has 50 divisors (see below), whose sum is σ = 62803334. Its totient is φ = 10368000.

The previous prime is 25929991. The next prime is 25930013. The reversal of 25930000 is 3952.

It can be written as a sum of positive squares in 5 ways, for example, as 8856576 + 17073424 = 2976^2 + 4132^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 25930000.

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, 8704 + ... + 11296.

Almost surely, 2^25930000 is an apocalyptic number.

25930000 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 25930000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31401667).

25930000 is an abundant number, since it is smaller than the sum of its proper divisors (36873334).

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

25930000 is an equidigital number, since it uses as much as digits as its factorization.

25930000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621 (or 2600 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 25930000 is about 5092.1508225896. The cubic root of 25930000 is about 295.9835028546.

Adding to 25930000 its reverse (3952), we get a palindrome (25933952).

The spelling of 25930000 in words is "twenty-five million, nine hundred thirty thousand".