550530640643 has 2 divisors, whose sum is σ = 550530640644. Its totient is φ = 550530640642.

The previous prime is 550530640483. The next prime is 550530640669. The reversal of 550530640643 is 346046035055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550530640643 - 2¹⁶ = 550530575107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550530640643.

It is not a weakly prime, because it can be changed into another prime (550530640943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275265320321 + 275265320322.

It is an arithmetic number, because the mean of its divisors is an integer number (275265320322).

Almost surely, 2^550530640643 is an apocalyptic number.

550530640643 is a deficient number, since it is larger than the sum of its proper divisors (1).

550530640643 is an equidigital number, since it uses as much as digits as its factorization.

550530640643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 550530640643 its reverse (346046035055), we get a palindrome (896576675698).

The spelling of 550530640643 in words is "five hundred fifty billion, five hundred thirty million, six hundred forty thousand, six hundred forty-three".