25798724 has 48 divisors (see below), whose sum is σ = 55375488. Its totient is φ = 10265088.

The previous prime is 25798693. The next prime is 25798739. The reversal of 25798724 is 42789752.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39182 + ... + 39834.

It is an arithmetic number, because the mean of its divisors is an integer number (1153656).

Almost surely, 2^25798724 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 25798724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27687744).

25798724 is an abundant number, since it is smaller than the sum of its proper divisors (29576764).

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

25798724 is a wasteful number, since it uses less digits than its factorization.

25798724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 762 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 25798724 is about 5079.2444319997. The cubic root of 25798724 is about 295.4831649350.

The spelling of 25798724 in words is "twenty-five million, seven hundred ninety-eight thousand, seven hundred twenty-four".