20501047050 has 48 divisors (see below), whose sum is σ = 55464655392. Its totient is φ = 4969950400.

The previous prime is 20501047043. The next prime is 20501047117. The reversal of 20501047050 is 5074010502.

It is a self number, because there is not a number n which added to its sum of digits gives 20501047050.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6210789 + ... + 6214088.

It is an arithmetic number, because the mean of its divisors is an integer number (1155513654).

Almost surely, 2^20501047050 is an apocalyptic number.

20501047050 is an abundant number, since it is smaller than the sum of its proper divisors (34963608342).

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

20501047050 is a wasteful number, since it uses less digits than its factorization.

20501047050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12424903 (or 12424898 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

Adding to 20501047050 its reverse (5074010502), we get a palindrome (25575057552).

The spelling of 20501047050 in words is "twenty billion, five hundred one million, forty-seven thousand, fifty".