25628959 has 8 divisors (see below), whose sum is σ = 26369280. Its totient is φ = 24896856.

The previous prime is 25628947. The next prime is 25628983. The reversal of 25628959 is 95982652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25628959 - 2¹¹ = 25626911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25628459) 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, 4572 + ... + 8494.

It is an arithmetic number, because the mean of its divisors is an integer number (3296160).

Almost surely, 2^25628959 is an apocalyptic number.

25628959 is a deficient number, since it is larger than the sum of its proper divisors (740321).

25628959 is a wasteful number, since it uses less digits than its factorization.

25628959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109.

The product of its digits is 388800, while the sum is 46.

The square root of 25628959 is about 5062.5052098739. The cubic root of 25628959 is about 294.8336091260.

The spelling of 25628959 in words is "twenty-five million, six hundred twenty-eight thousand, nine hundred fifty-nine".