20420553050 has 48 divisors (see below), whose sum is σ = 40021992000. Its totient is φ = 7730438400.

The previous prime is 20420553047. The next prime is 20420553061. The reversal of 20420553050 is 5035502402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 969026 + ... + 989874.

It is an arithmetic number, because the mean of its divisors is an integer number (833791500).

Almost surely, 2^20420553050 is an apocalyptic number.

20420553050 is a deficient number, since it is larger than the sum of its proper divisors (19601438950).

20420553050 is a wasteful number, since it uses less digits than its factorization.

20420553050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21911 (or 21906 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The spelling of 20420553050 in words is "twenty billion, four hundred twenty million, five hundred fifty-three thousand, fifty".