25762481 has 2 divisors, whose sum is σ = 25762482. Its totient is φ = 25762480.

The previous prime is 25762459. The next prime is 25762483. The reversal of 25762481 is 18426752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25090081 + 672400 = 5009^2 + 820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25762481 is a prime.

It is a super-2 number, since 2×25762481² = 1327410854550722, which contains 22 as substring.

Together with 25762483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25762483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12881240 + 12881241.

It is an arithmetic number, because the mean of its divisors is an integer number (12881241).

Almost surely, 2^25762481 is an apocalyptic number.

It is an amenable number.

25762481 is a deficient number, since it is larger than the sum of its proper divisors (1).

25762481 is an equidigital number, since it uses as much as digits as its factorization.

25762481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 25762481 is about 5075.6754230348. The cubic root of 25762481 is about 295.3447315361.

The spelling of 25762481 in words is "twenty-five million, seven hundred sixty-two thousand, four hundred eighty-one".