25335641 has 2 divisors, whose sum is σ = 25335642. Its totient is φ = 25335640.

The previous prime is 25335601. The next prime is 25335659. The reversal of 25335641 is 14653352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23319241 + 2016400 = 4829^2 + 1420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25335641 is a prime.

It is not a weakly prime, because it can be changed into another prime (25335601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12667820 + 12667821.

It is an arithmetic number, because the mean of its divisors is an integer number (12667821).

Almost surely, 2^25335641 is an apocalyptic number.

It is an amenable number.

25335641 is a deficient number, since it is larger than the sum of its proper divisors (1).

25335641 is an equidigital number, since it uses as much as digits as its factorization.

25335641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 29.

The square root of 25335641 is about 5033.4521950645. The cubic root of 25335641 is about 293.7045213432.

Adding to 25335641 its reverse (14653352), we get a palindrome (39988993).

The spelling of 25335641 in words is "twenty-five million, three hundred thirty-five thousand, six hundred forty-one".