20455005052 has 24 divisors (see below), whose sum is σ = 36264678912. Its totient is φ = 10093921200.

The previous prime is 20455005007. The next prime is 20455005071. The reversal of 20455005052 is 25050055402.

It is a self number, because there is not a number n which added to its sum of digits gives 20455005052.

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 7 ways as a sum of consecutive naturals, for example, 297927 + ... + 360097.

It is an arithmetic number, because the mean of its divisors is an integer number (1511028288).

Almost surely, 2^20455005052 is an apocalyptic number.

It is an amenable number.

20455005052 is a deficient number, since it is larger than the sum of its proper divisors (15809673860).

20455005052 is a wasteful number, since it uses less digits than its factorization.

20455005052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63249 (or 63247 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The spelling of 20455005052 in words is "twenty billion, four hundred fifty-five million, five thousand, fifty-two".