25740293 has 2 divisors, whose sum is σ = 25740294. Its totient is φ = 25740292.

The previous prime is 25740263. The next prime is 25740317. The reversal of 25740293 is 39204752.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20367169 + 5373124 = 4513^2 + 2318^2 .

It is a cyclic number.

It is not a de Polignac number, because 25740293 - 2¹⁴ = 25723909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25740203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12870146 + 12870147.

It is an arithmetic number, because the mean of its divisors is an integer number (12870147).

Almost surely, 2^25740293 is an apocalyptic number.

It is an amenable number.

25740293 is a deficient number, since it is larger than the sum of its proper divisors (1).

25740293 is an equidigital number, since it uses as much as digits as its factorization.

25740293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 25740293 is about 5073.4892332595. The cubic root of 25740293 is about 295.2599183912.

It can be divided in two parts, 257 and 40293, that multiplied together give a palindrome (10355301).

The spelling of 25740293 in words is "twenty-five million, seven hundred forty thousand, two hundred ninety-three".