25540936 has 32 divisors (see below), whose sum is σ = 51481440. Its totient is φ = 11835648.

The previous prime is 25540927. The next prime is 25540961. The reversal of 25540936 is 63904552.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7711 + ... + 10513.

It is an arithmetic number, because the mean of its divisors is an integer number (1608795).

Almost surely, 2^25540936 is an apocalyptic number.

It is an amenable number.

25540936 is an abundant number, since it is smaller than the sum of its proper divisors (25940504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25540936 is a wasteful number, since it uses less digits than its factorization.

25540936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 25540936 is about 5053.8041117558. The cubic root of 25540936 is about 294.4956853138.

The spelling of 25540936 in words is "twenty-five million, five hundred forty thousand, nine hundred thirty-six".