20522352325 has 12 divisors (see below), whose sum is σ = 25451705188. Its totient is φ = 16415308800.

The previous prime is 20522352313. The next prime is 20522352329. The reversal of 20522352325 is 52325322502.

It can be written as a sum of positive squares in 6 ways, for example, as 2172398881 + 18349953444 = 46609^2 + 135462^2 .

It is not a de Polignac number, because 20522352325 - 2⁷ = 20522352197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522352329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107365 + ... + 229285.

Almost surely, 2^20522352325 is an apocalyptic number.

20522352325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20522352325 is a deficient number, since it is larger than the sum of its proper divisors (4929352863).

20522352325 is a wasteful number, since it uses less digits than its factorization.

20522352325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128664 (or 128659 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 20522352325 its reverse (52325322502), we get a palindrome (72847674827).

The spelling of 20522352325 in words is "twenty billion, five hundred twenty-two million, three hundred fifty-two thousand, three hundred twenty-five".