25735693 has 2 divisors, whose sum is σ = 25735694. Its totient is φ = 25735692.

The previous prime is 25735691. The next prime is 25735733. The reversal of 25735693 is 39653752.

It is an a-pointer prime, because the next prime (25735733) can be obtained adding 25735693 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17197609 + 8538084 = 4147^2 + 2922^2 .

It is a cyclic number.

It is not a de Polignac number, because 25735693 - 2¹ = 25735691 is a prime.

Together with 25735691, 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 (25735691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12867846 + 12867847.

It is an arithmetic number, because the mean of its divisors is an integer number (12867847).

Almost surely, 2^25735693 is an apocalyptic number.

It is an amenable number.

25735693 is a deficient number, since it is larger than the sum of its proper divisors (1).

25735693 is an equidigital number, since it uses as much as digits as its factorization.

25735693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 40.

The square root of 25735693 is about 5073.0358760805. The cubic root of 25735693 is about 295.2423288927.

The spelling of 25735693 in words is "twenty-five million, seven hundred thirty-five thousand, six hundred ninety-three".