55533224443 has 2 divisors, whose sum is σ = 55533224444. Its totient is φ = 55533224442.

The previous prime is 55533224429. The next prime is 55533224489. The reversal of 55533224443 is 34442233555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55533224443 - 2²¹ = 55531127291 is a prime.

It is a super-2 number, since 2×55533224443² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55533224396 and 55533224405.

It is not a weakly prime, because it can be changed into another prime (55533224423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27766612221 + 27766612222.

It is an arithmetic number, because the mean of its divisors is an integer number (27766612222).

Almost surely, 2^55533224443 is an apocalyptic number.

55533224443 is a deficient number, since it is larger than the sum of its proper divisors (1).

55533224443 is an equidigital number, since it uses as much as digits as its factorization.

55533224443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 40.

Adding to 55533224443 its reverse (34442233555), we get a palindrome (89975457998).

The spelling of 55533224443 in words is "fifty-five billion, five hundred thirty-three million, two hundred twenty-four thousand, four hundred forty-three".