550531465469 has 2 divisors, whose sum is σ = 550531465470. Its totient is φ = 550531465468.

The previous prime is 550531465427. The next prime is 550531465537. The reversal of 550531465469 is 964564135055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506709067225 + 43822398244 = 711835^2 + 209338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550531465469 is a prime.

It is a super-2 number, since 2×550531465469² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550531465469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550531465409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275265732734 + 275265732735.

It is an arithmetic number, because the mean of its divisors is an integer number (275265732735).

Almost surely, 2^550531465469 is an apocalyptic number.

It is an amenable number.

550531465469 is a deficient number, since it is larger than the sum of its proper divisors (1).

550531465469 is an equidigital number, since it uses as much as digits as its factorization.

550531465469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720000, while the sum is 53.

The spelling of 550531465469 in words is "five hundred fifty billion, five hundred thirty-one million, four hundred sixty-five thousand, four hundred sixty-nine".