25783453 has 2 divisors, whose sum is σ = 25783454. Its totient is φ = 25783452.

The previous prime is 25783451. The next prime is 25783463. The reversal of 25783453 is 35438752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17791524 + 7991929 = 4218^2 + 2827^2 .

It is a cyclic number.

It is not a de Polignac number, because 25783453 - 2¹ = 25783451 is a prime.

Together with 25783451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25783451) 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, 12891726 + 12891727.

It is an arithmetic number, because the mean of its divisors is an integer number (12891727).

Almost surely, 2^25783453 is an apocalyptic number.

It is an amenable number.

25783453 is a deficient number, since it is larger than the sum of its proper divisors (1).

25783453 is an equidigital number, since it uses as much as digits as its factorization.

25783453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 37.

The square root of 25783453 is about 5077.7409347071. The cubic root of 25783453 is about 295.4248517922.

The spelling of 25783453 in words is "twenty-five million, seven hundred eighty-three thousand, four hundred fifty-three".