25158863 has 4 divisors (see below), whose sum is σ = 26026440. Its totient is φ = 24291288.

The previous prime is 25158857. The next prime is 25158911. The reversal of 25158863 is 36885152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25158863 - 2²⁰ = 24110287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25158823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433745 + ... + 433802.

It is an arithmetic number, because the mean of its divisors is an integer number (6506610).

Almost surely, 2^25158863 is an apocalyptic number.

25158863 is a deficient number, since it is larger than the sum of its proper divisors (867577).

25158863 is an equidigital number, since it uses as much as digits as its factorization.

25158863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867576.

The product of its digits is 57600, while the sum is 38.

The square root of 25158863 is about 5015.8611424161. The cubic root of 25158863 is about 293.0198241663.

The spelling of 25158863 in words is "twenty-five million, one hundred fifty-eight thousand, eight hundred sixty-three".