25782853 has 2 divisors, whose sum is σ = 25782854. Its totient is φ = 25782852.

The previous prime is 25782817. The next prime is 25782877. The reversal of 25782853 is 35828752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25735329 + 47524 = 5073^2 + 218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25782853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25782893) 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, 12891426 + 12891427.

It is an arithmetic number, because the mean of its divisors is an integer number (12891427).

Almost surely, 2^25782853 is an apocalyptic number.

It is an amenable number.

25782853 is a deficient number, since it is larger than the sum of its proper divisors (1).

25782853 is an equidigital number, since it uses as much as digits as its factorization.

25782853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 40.

The square root of 25782853 is about 5077.6818529719. The cubic root of 25782853 is about 295.4225601896.

The spelling of 25782853 in words is "twenty-five million, seven hundred eighty-two thousand, eight hundred fifty-three".