25305227 has 2 divisors, whose sum is σ = 25305228. Its totient is φ = 25305226.

The previous prime is 25305211. The next prime is 25305233. The reversal of 25305227 is 72250352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25305227 - 2⁴ = 25305211 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25305196 and 25305205.

It is not a weakly prime, because it can be changed into another prime (25305257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12652613 + 12652614.

It is an arithmetic number, because the mean of its divisors is an integer number (12652614).

Almost surely, 2^25305227 is an apocalyptic number.

25305227 is a deficient number, since it is larger than the sum of its proper divisors (1).

25305227 is an equidigital number, since it uses as much as digits as its factorization.

25305227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 25305227 is about 5030.4301008959. The cubic root of 25305227 is about 293.5869490780.

Adding to 25305227 its reverse (72250352), we get a palindrome (97555579).

The spelling of 25305227 in words is "twenty-five million, three hundred five thousand, two hundred twenty-seven".