22155132025 has 12 divisors (see below), whose sum is σ = 29585622892. Its totient is φ = 16360712640.

The previous prime is 22155131981. The next prime is 22155132073. The reversal of 22155132025 is 52023155122.

It can be written as a sum of positive squares in 6 ways, for example, as 7441984 + 22147690041 = 2728^2 + 148821^2 .

It is not a de Polignac number, because 22155132025 - 2⁹ = 22155131513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22155131984 and 22155132002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34084494 + ... + 34085143.

Almost surely, 2^22155132025 is an apocalyptic number.

22155132025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22155132025 is a deficient number, since it is larger than the sum of its proper divisors (7430490867).

22155132025 is a wasteful number, since it uses less digits than its factorization.

22155132025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68169660 (or 68169655 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 22155132025 its reverse (52023155122), we get a palindrome (74178287147).

The spelling of 22155132025 in words is "twenty-two billion, one hundred fifty-five million, one hundred thirty-two thousand, twenty-five".