25763243 has 16 divisors (see below), whose sum is σ = 29721600. Its totient is φ = 22102080.

The previous prime is 25763239. The next prime is 25763249. The reversal of 25763243 is 34236752.

It is not a de Polignac number, because 25763243 - 2² = 25763239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25763249) 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 in 15 ways as a sum of consecutive naturals, for example, 19343 + ... + 20631.

It is an arithmetic number, because the mean of its divisors is an integer number (1857600).

Almost surely, 2^25763243 is an apocalyptic number.

25763243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25763243 is a deficient number, since it is larger than the sum of its proper divisors (3958357).

25763243 is a wasteful number, since it uses less digits than its factorization.

25763243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its digits is 30240, while the sum is 32.

The square root of 25763243 is about 5075.7504863813. The cubic root of 25763243 is about 295.3476433993.

Adding to 25763243 its reverse (34236752), we get a palindrome (59999995).

The spelling of 25763243 in words is "twenty-five million, seven hundred sixty-three thousand, two hundred forty-three".