20522203452 has 36 divisors (see below), whose sum is σ = 53664385320. Its totient is φ = 6604846752.

The previous prime is 20522203451. The next prime is 20522203477. The reversal of 20522203452 is 25430222502.

20522203452 is a `hidden beast` number, since 2 + 0 + 5 + 2 + 2 + 203 + 452 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522203451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9827598 + ... + 9829685.

It is an arithmetic number, because the mean of its divisors is an integer number (1490677370).

Almost surely, 2^20522203452 is an apocalyptic number.

It is an amenable number.

20522203452 is an abundant number, since it is smaller than the sum of its proper divisors (33142181868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20522203452 is a wasteful number, since it uses less digits than its factorization.

20522203452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19657322 (or 19657317 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 20522203452 its reverse (25430222502), we get a palindrome (45952425954).

The spelling of 20522203452 in words is "twenty billion, five hundred twenty-two million, two hundred three thousand, four hundred fifty-two".