25855081 has 8 divisors (see below), whose sum is σ = 29905344. Its totient is φ = 21894000.

The previous prime is 25855031. The next prime is 25855111. The reversal of 25855081 is 18055852.

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 25855081 - 2²³ = 17466473 is a prime.

It is a super-2 number, since 2×25855081² = 1336970427033122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25855031) 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, 21670 + ... + 22831.

It is an arithmetic number, because the mean of its divisors is an integer number (3738168).

Almost surely, 2^25855081 is an apocalyptic number.

It is an amenable number.

25855081 is a deficient number, since it is larger than the sum of its proper divisors (4050263).

25855081 is an equidigital number, since it uses as much as digits as its factorization.

25855081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44591.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 25855081 is about 5084.7891795039. The cubic root of 25855081 is about 295.6981682515.

The spelling of 25855081 in words is "twenty-five million, eight hundred fifty-five thousand, eighty-one".