25423545 has 16 divisors (see below), whose sum is σ = 46488960. Its totient is φ = 11622144.

The previous prime is 25423537. The next prime is 25423571. The reversal of 25423545 is 54532452.

It is not a de Polignac number, because 25423545 - 2³ = 25423537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120960 + ... + 121169.

It is an arithmetic number, because the mean of its divisors is an integer number (2905560).

Almost surely, 2^25423545 is an apocalyptic number.

It is an amenable number.

25423545 is a deficient number, since it is larger than the sum of its proper divisors (21065415).

25423545 is a wasteful number, since it uses less digits than its factorization.

25423545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242144.

The product of its digits is 24000, while the sum is 30.

The square root of 25423545 is about 5042.1766133288. The cubic root of 25423545 is about 294.0438062357.

Adding to 25423545 its reverse (54532452), we get a palindrome (79955997).

The spelling of 25423545 in words is "twenty-five million, four hundred twenty-three thousand, five hundred forty-five".