20520553505022 has 32 divisors (see below), whose sum is σ = 45864820956960. Its totient is φ = 6800645859840.

The previous prime is 20520553505021. The next prime is 20520553505057. The reversal of 20520553505022 is 22050535502502.

20520553505022 is a `hidden beast` number, since 2 + 0 + 5 + 2 + 0 + 553 + 50 + 50 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20520553505021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1098286179 + ... + 1098304862.

It is an arithmetic number, because the mean of its divisors is an integer number (1433275654905).

Almost surely, 2^{20520553505022} is an apocalyptic number.

20520553505022 is an abundant number, since it is smaller than the sum of its proper divisors (25344267451938).

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

20520553505022 is a wasteful number, since it uses less digits than its factorization.

20520553505022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196591225 (or 2196591219 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

The spelling of 20520553505022 in words is "twenty trillion, five hundred twenty billion, five hundred fifty-three million, five hundred five thousand, twenty-two".