25837081 has 2 divisors, whose sum is σ = 25837082. Its totient is φ = 25837080.

The previous prime is 25837069. The next prime is 25837121. The reversal of 25837081 is 18073852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18627856 + 7209225 = 4316^2 + 2685^2 .

It is a cyclic number.

It is not a de Polignac number, because 25837081 - 2⁷ = 25836953 is a prime.

It is a super-2 number, since 2×25837081² = 1335109509201122, which contains 22 as substring.

It is equal to p_1614976 and since 25837081 and 1614976 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25837381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12918540 + 12918541.

It is an arithmetic number, because the mean of its divisors is an integer number (12918541).

Almost surely, 2^25837081 is an apocalyptic number.

It is an amenable number.

25837081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25837081 is an equidigital number, since it uses as much as digits as its factorization.

25837081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 25837081 is about 5083.0188864493. The cubic root of 25837081 is about 295.6295318047.

The spelling of 25837081 in words is "twenty-five million, eight hundred thirty-seven thousand, eighty-one".