25345123 has 4 divisors (see below), whose sum is σ = 25357320. Its totient is φ = 25332928.

The previous prime is 25345097. The next prime is 25345157. The reversal of 25345123 is 32154352.

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 25345123 - 2⁹ = 25344611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25345193) 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, 2113 + ... + 7426.

It is an arithmetic number, because the mean of its divisors is an integer number (6339330).

Almost surely, 2^25345123 is an apocalyptic number.

25345123 is a deficient number, since it is larger than the sum of its proper divisors (12197).

25345123 is an equidigital number, since it uses as much as digits as its factorization.

25345123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12196.

The product of its digits is 3600, while the sum is 25.

The square root of 25345123 is about 5034.3940052404. The cubic root of 25345123 is about 293.7411569392.

Adding to 25345123 its reverse (32154352), we get a palindrome (57499475).

The spelling of 25345123 in words is "twenty-five million, three hundred forty-five thousand, one hundred twenty-three".