25726089 has 8 divisors (see below), whose sum is σ = 34452160. Its totient is φ = 17075376.

The previous prime is 25726087. The next prime is 25726097. The reversal of 25726089 is 98062752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25726089 - 2¹ = 25726087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25726087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18037 + ... + 19410.

It is an arithmetic number, because the mean of its divisors is an integer number (4306520).

Almost surely, 2^25726089 is an apocalyptic number.

It is an amenable number.

25726089 is a deficient number, since it is larger than the sum of its proper divisors (8726071).

25726089 is a wasteful number, since it uses less digits than its factorization.

25726089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37679.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 25726089 is about 5072.0892145151. The cubic root of 25726089 is about 295.2055983214.

The spelling of 25726089 in words is "twenty-five million, seven hundred twenty-six thousand, eighty-nine".