25726280 has 32 divisors (see below), whose sum is σ = 59754240. Its totient is φ = 9958080.

The previous prime is 25726273. The next prime is 25726303. The reversal of 25726280 is 8262752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9134 + ... + 11613.

It is an arithmetic number, because the mean of its divisors is an integer number (1867320).

Almost surely, 2^25726280 is an apocalyptic number.

25726280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25726280 is an abundant number, since it is smaller than the sum of its proper divisors (34027960).

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

25726280 is a wasteful number, since it uses less digits than its factorization.

25726280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20789 (or 20785 counting only the distinct ones).

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

The square root of 25726280 is about 5072.1080430133. The cubic root of 25726280 is about 295.2063288915.

The spelling of 25726280 in words is "twenty-five million, seven hundred twenty-six thousand, two hundred eighty".