25582441 has 2 divisors, whose sum is σ = 25582442. Its totient is φ = 25582440.

The previous prime is 25582439. The next prime is 25582457. The reversal of 25582441 is 14428552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25290841 + 291600 = 5029^2 + 540^2 .

It is a cyclic number.

It is not a de Polignac number, because 25582441 - 2¹ = 25582439 is a prime.

It is a super-2 number, since 2×25582441² = 1308922575036962, which contains 22 as substring.

Together with 25582439, 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 (25582481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12791220 + 12791221.

It is an arithmetic number, because the mean of its divisors is an integer number (12791221).

Almost surely, 2^25582441 is an apocalyptic number.

It is an amenable number.

25582441 is a deficient number, since it is larger than the sum of its proper divisors (1).

25582441 is an equidigital number, since it uses as much as digits as its factorization.

25582441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12800, while the sum is 31.

The square root of 25582441 is about 5057.9087575796. The cubic root of 25582441 is about 294.6551212407.

The spelling of 25582441 in words is "twenty-five million, five hundred eighty-two thousand, four hundred forty-one".