25956081 has 12 divisors (see below), whose sum is σ = 37553152. Its totient is φ = 17275896.

The previous prime is 25956067. The next prime is 25956089. The reversal of 25956081 is 18065952.

It is a happy number.

25956081 is a `hidden beast` number, since 2 + 595 + 60 + 8 + 1 = 666.

It is not a de Polignac number, because 25956081 - 2⁶ = 25956017 is a prime.

It is a super-2 number, since 2×25956081² = 1347436281757122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25956089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4560 + ... + 8526.

Almost surely, 2^25956081 is an apocalyptic number.

It is an amenable number.

25956081 is a deficient number, since it is larger than the sum of its proper divisors (11597071).

25956081 is a wasteful number, since it uses less digits than its factorization.

25956081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700 (or 4697 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 25956081 is about 5094.7110811115. The cubic root of 25956081 is about 296.0827053102.

The spelling of 25956081 in words is "twenty-five million, nine hundred fifty-six thousand, eighty-one".