25351223 has 2 divisors, whose sum is σ = 25351224. Its totient is φ = 25351222.

The previous prime is 25351219. The next prime is 25351289. The reversal of 25351223 is 32215352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25351223 - 2² = 25351219 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25351213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12675611 + 12675612.

It is an arithmetic number, because the mean of its divisors is an integer number (12675612).

Almost surely, 2^25351223 is an apocalyptic number.

25351223 is a deficient number, since it is larger than the sum of its proper divisors (1).

25351223 is an equidigital number, since it uses as much as digits as its factorization.

25351223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 23.

The square root of 25351223 is about 5034.9998013903. Note that the first 3 decimals coincide. The cubic root of 25351223 is about 293.7647206747.

Adding to 25351223 its reverse (32215352), we get a palindrome (57566575).

The spelling of 25351223 in words is "twenty-five million, three hundred fifty-one thousand, two hundred twenty-three".