25044040022 has 16 divisors (see below), whose sum is σ = 37882654992. Its totient is φ = 12416888160.

The previous prime is 25044039961. The next prime is 25044040031. The reversal of 25044040022 is 22004044052.

It is a self number, because there is not a number n which added to its sum of digits gives 25044040022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25928 + ... + 225300.

It is an arithmetic number, because the mean of its divisors is an integer number (2367665937).

Almost surely, 2^25044040022 is an apocalyptic number.

25044040022 is a deficient number, since it is larger than the sum of its proper divisors (12838614970).

25044040022 is a wasteful number, since it uses less digits than its factorization.

25044040022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199903.

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 25044040022 its reverse (22004044052), we get a palindrome (47048084074).

The spelling of 25044040022 in words is "twenty-five billion, forty-four million, forty thousand, twenty-two".