25540068 has 48 divisors (see below), whose sum is σ = 62496000. Its totient is φ = 8107008.

The previous prime is 25540061. The next prime is 25540079. The reversal of 25540068 is 86004552.

It is not an unprimeable number, because it can be changed into a prime (25540061) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27028 + ... + 27956.

It is an arithmetic number, because the mean of its divisors is an integer number (1302000).

Almost surely, 2^25540068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25540068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31248000).

25540068 is an abundant number, since it is smaller than the sum of its proper divisors (36955932).

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

25540068 is a wasteful number, since it uses less digits than its factorization.

25540068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 25540068 is about 5053.7182351215. The cubic root of 25540068 is about 294.4923491642.

The spelling of 25540068 in words is "twenty-five million, five hundred forty thousand, sixty-eight".