25797750 has 128 divisors (see below), whose sum is σ = 72783360. Its totient is φ = 6032000.

The previous prime is 25797727. The next prime is 25797781. The reversal of 25797750 is 5779752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 437221 + ... + 437279.

It is an arithmetic number, because the mean of its divisors is an integer number (568620).

Almost surely, 2^25797750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25797750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36391680).

25797750 is an abundant number, since it is smaller than the sum of its proper divisors (46985610).

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

25797750 is a wasteful number, since it uses less digits than its factorization.

25797750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 154350, while the sum is 42.

The square root of 25797750 is about 5079.1485506923. The cubic root of 25797750 is about 295.4794463503.

The spelling of 25797750 in words is "twenty-five million, seven hundred ninety-seven thousand, seven hundred fifty".