550561633543 has 8 divisors (see below), whose sum is σ = 553445697168. Its totient is φ = 547677894144.

The previous prime is 550561633499. The next prime is 550561633547. The reversal of 550561633543 is 345336165055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550561633543 - 2¹³ = 550561625351 is a prime.

It is a super-2 number, since 2×550561633543² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550561633493 and 550561633502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550561633547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3811680 + ... + 3953482.

It is an arithmetic number, because the mean of its divisors is an integer number (69180712146).

Almost surely, 2^550561633543 is an apocalyptic number.

550561633543 is a deficient number, since it is larger than the sum of its proper divisors (2884063625).

550561633543 is a wasteful number, since it uses less digits than its factorization.

550561633543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162113.

The product of its (nonzero) digits is 2430000, while the sum is 46.

Adding to 550561633543 its reverse (345336165055), we get a palindrome (895897798598).

The spelling of 550561633543 in words is "five hundred fifty billion, five hundred sixty-one million, six hundred thirty-three thousand, five hundred forty-three".