25540863 has 8 divisors (see below), whose sum is σ = 34108800. Its totient is φ = 17000088.

The previous prime is 25540847. The next prime is 25540873. The reversal of 25540863 is 36804552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25540863 - 2⁴ = 25540847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25540873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4483 + ... + 8436.

It is an arithmetic number, because the mean of its divisors is an integer number (4263600).

Almost surely, 2^25540863 is an apocalyptic number.

25540863 is a deficient number, since it is larger than the sum of its proper divisors (8567937).

25540863 is a wasteful number, since it uses less digits than its factorization.

25540863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13581.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 25540863 is about 5053.7968894684. The cubic root of 25540863 is about 294.4954047419.

The spelling of 25540863 in words is "twenty-five million, five hundred forty thousand, eight hundred sixty-three".