20355325532 has 24 divisors (see below), whose sum is σ = 35872704000. Its totient is φ = 10106187696.

The previous prime is 20355325531. The next prime is 20355325541. The reversal of 20355325532 is 23552355302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20355325492 and 20355325501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20355325531) 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 7 ways as a sum of consecutive naturals, for example, 374969 + ... + 425807.

It is an arithmetic number, because the mean of its divisors is an integer number (1494696000).

Almost surely, 2^20355325532 is an apocalyptic number.

It is an amenable number.

20355325532 is a deficient number, since it is larger than the sum of its proper divisors (15517378468).

20355325532 is a wasteful number, since it uses less digits than its factorization.

20355325532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51545 (or 51543 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 35.

The spelling of 20355325532 in words is "twenty billion, three hundred fifty-five million, three hundred twenty-five thousand, five hundred thirty-two".