25563267 has 12 divisors (see below), whose sum is σ = 37047504. Its totient is φ = 16985520.

The previous prime is 25563259. The next prime is 25563277. The reversal of 25563267 is 76236552.

It is a happy number.

It is not a de Polignac number, because 25563267 - 2³ = 25563259 is a prime.

Its product of digits (75600) is a multiple of the sum of its prime factors (9450).

It is not an unprimeable number, because it can be changed into a prime (25563217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1768 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (3087292).

Almost surely, 2^25563267 is an apocalyptic number.

25563267 is a deficient number, since it is larger than the sum of its proper divisors (11484237).

25563267 is a wasteful number, since it uses less digits than its factorization.

25563267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450 (or 9447 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 25563267 is about 5056.0129548885. The cubic root of 25563267 is about 294.5814883224.

The spelling of 25563267 in words is "twenty-five million, five hundred sixty-three thousand, two hundred sixty-seven".