25826720 has 96 divisors (see below), whose sum is σ = 65028096. Its totient is φ = 9676800.

The previous prime is 25826711. The next prime is 25826753. The reversal of 25826720 is 2762852.

25826720 is nontrivially palindromic in base 9.

25826720 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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, 203297 + ... + 203423.

It is an arithmetic number, because the mean of its divisors is an integer number (677376).

Almost surely, 2^25826720 is an apocalyptic number.

25826720 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 25826720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32514048).

25826720 is an abundant number, since it is smaller than the sum of its proper divisors (39201376).

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

25826720 is a wasteful number, since it uses less digits than its factorization.

25826720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 25826720 is about 5081.9996064541. Note that the first 3 decimals coincide. The cubic root of 25826720 is about 295.5900094465.

25826720 divided by its sum of digits (32) gives a triangular number (807085 = T₁₂₇₀).

The spelling of 25826720 in words is "twenty-five million, eight hundred twenty-six thousand, seven hundred twenty".