25560423 has 24 divisors (see below), whose sum is σ = 42337568. Its totient is φ = 14556672.

The previous prime is 25560389. The next prime is 25560463. The reversal of 25560423 is 32406552.

25560423 is a `hidden beast` number, since 2 + 55 + 604 + 2 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-25560423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25560463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26811 + ... + 27747.

Almost surely, 2^25560423 is an apocalyptic number.

25560423 is a deficient number, since it is larger than the sum of its proper divisors (16777145).

25560423 is a wasteful number, since it uses less digits than its factorization.

25560423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383 (or 1380 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25560423 is about 5055.7316977862. The cubic root of 25560423 is about 294.5705635212.

Adding to 25560423 its reverse (32406552), we get a palindrome (57966975).

The spelling of 25560423 in words is "twenty-five million, five hundred sixty thousand, four hundred twenty-three".