22525440405 has 64 divisors (see below), whose sum is σ = 41037373440. Its totient is φ = 10459120896.

The previous prime is 22525440397. The next prime is 22525440409. The reversal of 22525440405 is 50404452522.

It is not a de Polignac number, because 22525440405 - 2³ = 22525440397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525440409) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 827644 + ... + 854426.

It is an arithmetic number, because the mean of its divisors is an integer number (641208960).

Almost surely, 2^22525440405 is an apocalyptic number.

It is an amenable number.

22525440405 is a deficient number, since it is larger than the sum of its proper divisors (18511933035).

22525440405 is a wasteful number, since it uses less digits than its factorization.

22525440405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27050.

The product of its (nonzero) digits is 64000, while the sum is 33.

Adding to 22525440405 its reverse (50404452522), we get a palindrome (72929892927).

The spelling of 22525440405 in words is "twenty-two billion, five hundred twenty-five million, four hundred forty thousand, four hundred five".