25882081 has 2 divisors, whose sum is σ = 25882082. Its totient is φ = 25882080.

The previous prime is 25882079. The next prime is 25882091. The reversal of 25882081 is 18028852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23126481 + 2755600 = 4809^2 + 1660^2 .

It is a cyclic number.

It is not a de Polignac number, because 25882081 - 2¹ = 25882079 is a prime.

It is a super-2 number, since 2×25882081² = 1339764233781122, which contains 22 as substring.

Together with 25882079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25882091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12941040 + 12941041.

It is an arithmetic number, because the mean of its divisors is an integer number (12941041).

Almost surely, 2^25882081 is an apocalyptic number.

It is an amenable number.

25882081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25882081 is an equidigital number, since it uses as much as digits as its factorization.

25882081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 25882081 is about 5087.4434640593. The cubic root of 25882081 is about 295.8010632172.

The spelling of 25882081 in words is "twenty-five million, eight hundred eighty-two thousand, eighty-one".