25995081 has 32 divisors (see below), whose sum is σ = 41525248. Its totient is φ = 14152320.

The previous prime is 25995071. The next prime is 25995119. The reversal of 25995081 is 18059952.

It is not a de Polignac number, because 25995081 - 2⁹ = 25994569 is a prime.

It is a super-2 number, since 2×25995081² = 1351488472393122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25995001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47250 + ... + 47796.

It is an arithmetic number, because the mean of its divisors is an integer number (1297664).

Almost surely, 2^25995081 is an apocalyptic number.

25995081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25995081 is a deficient number, since it is larger than the sum of its proper divisors (15530167).

25995081 is a wasteful number, since it uses less digits than its factorization.

25995081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 25995081 is about 5098.5371431421. The cubic root of 25995081 is about 296.2309229468.

The spelling of 25995081 in words is "twenty-five million, nine hundred ninety-five thousand, eighty-one".