22052405232225 has 72 divisors (see below), whose sum is σ = 39575448315000. Its totient is φ = 11738334965760.

The previous prime is 22052405232223. The next prime is 22052405232281. The reversal of 22052405232225 is 52223250425022.

22052405232225 is a `hidden beast` number, since 2 + 2 + 0 + 5 + 2 + 405 + 23 + 2 + 225 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 10740295463121 + 11312109769104 = 3277239^2 + 3363348^2 .

It is not a de Polignac number, because 22052405232225 - 2¹ = 22052405232223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22052405232225.

It is not an unprimeable number, because it can be changed into a prime (22052405232223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 246414187 + ... + 246503663.

It is an arithmetic number, because the mean of its divisors is an integer number (549659004375).

Almost surely, 2^{22052405232225} is an apocalyptic number.

22052405232225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22052405232225 is a deficient number, since it is larger than the sum of its proper divisors (17523043082775).

22052405232225 is a wasteful number, since it uses less digits than its factorization.

22052405232225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91619 (or 91611 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 22052405232225 its reverse (52223250425022), we get a palindrome (74275655657247).

The spelling of 22052405232225 in words is "twenty-two trillion, fifty-two billion, four hundred five million, two hundred thirty-two thousand, two hundred twenty-five".