55021313333 has 16 divisors (see below), whose sum is σ = 63950705280. Its totient is φ = 46363435776.

The previous prime is 55021313293. The next prime is 55021313341. The reversal of 55021313333 is 33331312055.

It is not a de Polignac number, because 55021313333 - 2¹⁶ = 55021247797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55021313296 and 55021313305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55021313363) 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, 18488 + ... + 332241.

It is an arithmetic number, because the mean of its divisors is an integer number (3996919080).

Almost surely, 2^55021313333 is an apocalyptic number.

It is an amenable number.

55021313333 is a deficient number, since it is larger than the sum of its proper divisors (8929391947).

55021313333 is a wasteful number, since it uses less digits than its factorization.

55021313333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351116.

The product of its (nonzero) digits is 12150, while the sum is 29.

Adding to 55021313333 its reverse (33331312055), we get a palindrome (88352625388).

The spelling of 55021313333 in words is "fifty-five billion, twenty-one million, three hundred thirteen thousand, three hundred thirty-three".