25701653 has 2 divisors, whose sum is σ = 25701654. Its totient is φ = 25701652.

The previous prime is 25701607. The next prime is 25701691. The reversal of 25701653 is 35610752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18852964 + 6848689 = 4342^2 + 2617^2 .

It is a cyclic number.

It is not a de Polignac number, because 25701653 - 2⁶ = 25701589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25701553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12850826 + 12850827.

It is an arithmetic number, because the mean of its divisors is an integer number (12850827).

Almost surely, 2^25701653 is an apocalyptic number.

It is an amenable number.

25701653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25701653 is an equidigital number, since it uses as much as digits as its factorization.

25701653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 25701653 is about 5069.6797729245. The cubic root of 25701653 is about 295.1121014154.

Subtracting 25701653 from its reverse (35610752), we obtain a palindrome (9909099).

The spelling of 25701653 in words is "twenty-five million, seven hundred one thousand, six hundred fifty-three".