25803800 has 96 divisors (see below), whose sum is σ = 67428720. Its totient is φ = 9100800.

The previous prime is 25803797. The next prime is 25803803. The reversal of 25803800 is 830852.

It is an interprime number because it is at equal distance from previous prime (25803797) and next prime (25803803).

It is a self number, because there is not a number n which added to its sum of digits gives 25803800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25803803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81242 + ... + 81558.

Almost surely, 2^25803800 is an apocalyptic number.

25803800 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 25803800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33714360).

25803800 is an abundant number, since it is smaller than the sum of its proper divisors (41624920).

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

25803800 is a wasteful number, since it uses less digits than its factorization.

25803800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 25803800 is about 5079.7440880422. The cubic root of 25803800 is about 295.5025428209.

The spelling of 25803800 in words is "twenty-five million, eight hundred three thousand, eight hundred".