20550211002 has 32 divisors (see below), whose sum is σ = 45671817600. Its totient is φ = 6849368064.

The previous prime is 20550211001. The next prime is 20550211057. The reversal of 20550211002 is 20011205502.

20550211002 is a `hidden beast` number, since 2 + 0 + 550 + 2 + 110 + 0 + 2 = 666.

It is a super-2 number, since 2×20550211002² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20550211001) 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, 1040899 + ... + 1060457.

It is an arithmetic number, because the mean of its divisors is an integer number (1427244300).

Almost surely, 2^20550211002 is an apocalyptic number.

20550211002 is an abundant number, since it is smaller than the sum of its proper divisors (25121606598).

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

20550211002 is a wasteful number, since it uses less digits than its factorization.

20550211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39027 (or 39021 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 20550211002 its reverse (20011205502), we get a palindrome (40561416504).

The spelling of 20550211002 in words is "twenty billion, five hundred fifty million, two hundred eleven thousand, two".