25783243 has 2 divisors, whose sum is σ = 25783244. Its totient is φ = 25783242.

The previous prime is 25783231. The next prime is 25783259. The reversal of 25783243 is 34238752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25783243 - 2¹⁷ = 25652171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25783199 and 25783208.

It is not a weakly prime, because it can be changed into another prime (25783343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12891621 + 12891622.

It is an arithmetic number, because the mean of its divisors is an integer number (12891622).

Almost surely, 2^25783243 is an apocalyptic number.

25783243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25783243 is an equidigital number, since it uses as much as digits as its factorization.

25783243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 25783243 is about 5077.7202561780. The cubic root of 25783243 is about 295.4240497354.

The spelling of 25783243 in words is "twenty-five million, seven hundred eighty-three thousand, two hundred forty-three".