20535222325 has 48 divisors (see below), whose sum is σ = 27408870720. Its totient is φ = 15214417920.

The previous prime is 20535222313. The next prime is 20535222353. The reversal of 20535222325 is 52322253502.

It is not a de Polignac number, because 20535222325 - 2¹⁵ = 20535189557 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 7727397 + ... + 7730053.

It is an arithmetic number, because the mean of its divisors is an integer number (571018140).

Almost surely, 2^20535222325 is an apocalyptic number.

20535222325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20535222325 is a deficient number, since it is larger than the sum of its proper divisors (6873648395).

20535222325 is a wasteful number, since it uses less digits than its factorization.

20535222325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046 (or 3041 counting only the distinct ones).

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

Adding to 20535222325 its reverse (52322253502), we get a palindrome (72857475827).

The spelling of 20535222325 in words is "twenty billion, five hundred thirty-five million, two hundred twenty-two thousand, three hundred twenty-five".