550563611513 has 4 divisors (see below), whose sum is σ = 558105578868. Its totient is φ = 543021644160.

The previous prime is 550563611503. The next prime is 550563611561. The reversal of 550563611513 is 315116365055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243904613689 + 306658997824 = 493867^2 + 553768^2 .

It is a cyclic number.

It is not a de Polignac number, because 550563611513 - 2⁴ = 550563611497 is a prime.

It is a super-2 number, since 2×550563611513² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550563611503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3770983568 + ... + 3770983713.

It is an arithmetic number, because the mean of its divisors is an integer number (139526394717).

Almost surely, 2^550563611513 is an apocalyptic number.

It is an amenable number.

550563611513 is a deficient number, since it is larger than the sum of its proper divisors (7541967355).

550563611513 is an equidigital number, since it uses as much as digits as its factorization.

550563611513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7541967354.

The product of its (nonzero) digits is 202500, while the sum is 41.

Adding to 550563611513 its reverse (315116365055), we get a palindrome (865679976568).

The spelling of 550563611513 in words is "five hundred fifty billion, five hundred sixty-three million, six hundred eleven thousand, five hundred thirteen".