25743073 has 2 divisors, whose sum is σ = 25743074. Its totient is φ = 25743072.

The previous prime is 25743071. The next prime is 25743077. The reversal of 25743073 is 37034752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25735329 + 7744 = 5073^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 25743073 - 2¹ = 25743071 is a prime.

Together with 25743071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25743071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12871536 + 12871537.

It is an arithmetic number, because the mean of its divisors is an integer number (12871537).

Almost surely, 2^25743073 is an apocalyptic number.

It is an amenable number.

25743073 is a deficient number, since it is larger than the sum of its proper divisors (1).

25743073 is an equidigital number, since it uses as much as digits as its factorization.

25743073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 25743073 is about 5073.7631990466. The cubic root of 25743073 is about 295.2705475505.

The spelling of 25743073 in words is "twenty-five million, seven hundred forty-three thousand, seventy-three".