25540312 has 32 divisors (see below), whose sum is σ = 55077120. Its totient is φ = 10876320.

The previous prime is 25540309. The next prime is 25540349. The reversal of 25540312 is 21304552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7987 + ... + 10717.

It is an arithmetic number, because the mean of its divisors is an integer number (1721160).

Almost surely, 2^25540312 is an apocalyptic number.

It is an amenable number.

25540312 is an abundant number, since it is smaller than the sum of its proper divisors (29536808).

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

25540312 is a wasteful number, since it uses less digits than its factorization.

25540312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911 (or 2907 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25540312 is about 5053.7423757054. The cubic root of 25540312 is about 294.4932869834.

Adding to 25540312 its reverse (21304552), we get a palindrome (46844864).

It can be divided in two parts, 25540 and 312, that added together give a palindrome (25852).

The spelling of 25540312 in words is "twenty-five million, five hundred forty thousand, three hundred twelve".