25835123 has 4 divisors (see below), whose sum is σ = 25845360. Its totient is φ = 25824888.

The previous prime is 25835119. The next prime is 25835137. The reversal of 25835123 is 32153852.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25835123 - 2² = 25835119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25835023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661 + ... + 7377.

It is an arithmetic number, because the mean of its divisors is an integer number (6461340).

Almost surely, 2^25835123 is an apocalyptic number.

25835123 is a deficient number, since it is larger than the sum of its proper divisors (10237).

25835123 is an equidigital number, since it uses as much as digits as its factorization.

25835123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236.

The product of its digits is 7200, while the sum is 29.

The square root of 25835123 is about 5082.8262807222. The cubic root of 25835123 is about 295.6220637623.

Adding to 25835123 its reverse (32153852), we get a palindrome (57988975).

The spelling of 25835123 in words is "twenty-five million, eight hundred thirty-five thousand, one hundred twenty-three".