55645226543 has 2 divisors, whose sum is σ = 55645226544. Its totient is φ = 55645226542.

The previous prime is 55645226501. The next prime is 55645226621. The reversal of 55645226543 is 34562254655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55645226543 - 2¹⁶ = 55645161007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55645226743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27822613271 + 27822613272.

It is an arithmetic number, because the mean of its divisors is an integer number (27822613272).

Almost surely, 2^55645226543 is an apocalyptic number.

55645226543 is a deficient number, since it is larger than the sum of its proper divisors (1).

55645226543 is an equidigital number, since it uses as much as digits as its factorization.

55645226543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320000, while the sum is 47.

The spelling of 55645226543 in words is "fifty-five billion, six hundred forty-five million, two hundred twenty-six thousand, five hundred forty-three".