25455163 has 2 divisors, whose sum is σ = 25455164. Its totient is φ = 25455162.

The previous prime is 25455151. The next prime is 25455167. The reversal of 25455163 is 36155452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25455163 - 2⁹ = 25454651 is a prime.

It is not a weakly prime, because it can be changed into another prime (25455167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727581 + 12727582.

It is an arithmetic number, because the mean of its divisors is an integer number (12727582).

Almost surely, 2^25455163 is an apocalyptic number.

25455163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25455163 is an equidigital number, since it uses as much as digits as its factorization.

25455163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 31.

The square root of 25455163 is about 5045.3109914058. The cubic root of 25455163 is about 294.1656516304.

The spelling of 25455163 in words is "twenty-five million, four hundred fifty-five thousand, one hundred sixty-three".