25505027 has 2 divisors, whose sum is σ = 25505028. Its totient is φ = 25505026.

The previous prime is 25505023. The next prime is 25505041. The reversal of 25505027 is 72050552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25505027 - 2² = 25505023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25504987 and 25505005.

It is not a weakly prime, because it can be changed into another prime (25505021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752513 + 12752514.

It is an arithmetic number, because the mean of its divisors is an integer number (12752514).

Almost surely, 2^25505027 is an apocalyptic number.

25505027 is a deficient number, since it is larger than the sum of its proper divisors (1).

25505027 is an equidigital number, since it uses as much as digits as its factorization.

25505027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 25505027 is about 5050.2501918222. The cubic root of 25505027 is about 294.3576062526.

Adding to 25505027 its reverse (72050552), we get a palindrome (97555579).

The spelling of 25505027 in words is "twenty-five million, five hundred five thousand, twenty-seven".