25109827 has 2 divisors, whose sum is σ = 25109828. Its totient is φ = 25109826.

The previous prime is 25109801. The next prime is 25109839. The reversal of 25109827 is 72890152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25109827 - 2¹¹ = 25107779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25109792 and 25109801.

It is not a weakly prime, because it can be changed into another prime (25109897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12554913 + 12554914.

It is an arithmetic number, because the mean of its divisors is an integer number (12554914).

Almost surely, 2^25109827 is an apocalyptic number.

25109827 is a deficient number, since it is larger than the sum of its proper divisors (1).

25109827 is an equidigital number, since it uses as much as digits as its factorization.

25109827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 25109827 is about 5010.9706644521. The cubic root of 25109827 is about 292.8293297968.

Adding to 25109827 its reverse (72890152), we get a palindrome (97999979).

The spelling of 25109827 in words is "twenty-five million, one hundred nine thousand, eight hundred twenty-seven".