20555301033 has 6 divisors (see below), whose sum is σ = 29690990394. Its totient is φ = 13703534016.

The previous prime is 20555301029. The next prime is 20555301061. The reversal of 20555301033 is 33010355502.

20555301033 is a `hidden beast` number, since 2 + 0 + 5 + 553 + 0 + 103 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13154484249 + 7400816784 = 114693^2 + 86028^2 .

It is not a de Polignac number, because 20555301033 - 2² = 20555301029 is a prime.

It is a super-4 number, since 4×20555301033⁴ (a number of 42 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20555300988 and 20555301006.

It is not an unprimeable number, because it can be changed into a prime (20555300033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1141961160 + ... + 1141961177.

It is an arithmetic number, because the mean of its divisors is an integer number (4948498399).

Almost surely, 2^20555301033 is an apocalyptic number.

It is an amenable number.

20555301033 is a deficient number, since it is larger than the sum of its proper divisors (9135689361).

20555301033 is a wasteful number, since it uses less digits than its factorization.

20555301033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283922343 (or 2283922340 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

Adding to 20555301033 its reverse (33010355502), we get a palindrome (53565656535).

The spelling of 20555301033 in words is "twenty billion, five hundred fifty-five million, three hundred one thousand, thirty-three".