25533163 has 2 divisors, whose sum is σ = 25533164. Its totient is φ = 25533162.

The previous prime is 25533139. The next prime is 25533239. The reversal of 25533163 is 36133552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25533163 - 2⁹ = 25532651 is a prime.

It is not a weakly prime, because it can be changed into another prime (25533763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12766581 + 12766582.

It is an arithmetic number, because the mean of its divisors is an integer number (12766582).

Almost surely, 2^25533163 is an apocalyptic number.

25533163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25533163 is an equidigital number, since it uses as much as digits as its factorization.

25533163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 28.

The square root of 25533163 is about 5053.0350285744. The cubic root of 25533163 is about 294.4658071707.

The spelling of 25533163 in words is "twenty-five million, five hundred thirty-three thousand, one hundred sixty-three".