25216727 has 2 divisors, whose sum is σ = 25216728. Its totient is φ = 25216726.

The previous prime is 25216693. The next prime is 25216753. The reversal of 25216727 is 72761252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25216727 - 2¹² = 25212631 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25216693 and 25216702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25216127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12608363 + 12608364.

It is an arithmetic number, because the mean of its divisors is an integer number (12608364).

Almost surely, 2^25216727 is an apocalyptic number.

25216727 is a deficient number, since it is larger than the sum of its proper divisors (1).

25216727 is an equidigital number, since it uses as much as digits as its factorization.

25216727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 32.

The square root of 25216727 is about 5021.6259319069. The cubic root of 25216727 is about 293.2442953190.

Adding to 25216727 its reverse (72761252), we get a palindrome (97977979).

The spelling of 25216727 in words is "twenty-five million, two hundred sixteen thousand, seven hundred twenty-seven".