21552014143333 has 2 divisors, whose sum is σ = 21552014143334. Its totient is φ = 21552014143332.

The previous prime is 21552014143241. The next prime is 21552014143351. The reversal of 21552014143333 is 33334141025512.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20956966982884 + 595047160449 = 4577878^2 + 771393^2 .

It is a cyclic number.

It is not a de Polignac number, because 21552014143333 - 2²¹ = 21552012046181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21552014143292 and 21552014143301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21552014143633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10776007071666 + 10776007071667.

It is an arithmetic number, because the mean of its divisors is an integer number (10776007071667).

Almost surely, 2^{21552014143333} is an apocalyptic number.

It is an amenable number.

21552014143333 is a deficient number, since it is larger than the sum of its proper divisors (1).

21552014143333 is an equidigital number, since it uses as much as digits as its factorization.

21552014143333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 21552014143333 its reverse (33334141025512), we get a palindrome (54886155168845).

The spelling of 21552014143333 in words is "twenty-one trillion, five hundred fifty-two billion, fourteen million, one hundred forty-three thousand, three hundred thirty-three".