25121163 has 16 divisors (see below), whose sum is σ = 34848000. Its totient is φ = 16077600.

The previous prime is 25121153. The next prime is 25121167. The reversal of 25121163 is 36112152.

It is not a de Polignac number, because 25121163 - 2⁴ = 25121147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25121167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16588 + ... + 18038.

It is an arithmetic number, because the mean of its divisors is an integer number (2178000).

Almost surely, 2^25121163 is an apocalyptic number.

25121163 is a deficient number, since it is larger than the sum of its proper divisors (9726837).

25121163 is a wasteful number, since it uses less digits than its factorization.

25121163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682.

The product of its digits is 360, while the sum is 21.

The square root of 25121163 is about 5012.1016549946. The cubic root of 25121163 is about 292.8733897561.

The spelling of 25121163 in words is "twenty-five million, one hundred twenty-one thousand, one hundred sixty-three".