550433205541 has 4 divisors (see below), whose sum is σ = 554393156800. Its totient is φ = 546473254284.

The previous prime is 550433205533. The next prime is 550433205571. The reversal of 550433205541 is 145502334055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550433205541 - 2³ = 550433205533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550433205541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550433205571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979975421 + ... + 1979975698.

It is an arithmetic number, because the mean of its divisors is an integer number (138598289200).

Almost surely, 2^550433205541 is an apocalyptic number.

It is an amenable number.

550433205541 is a deficient number, since it is larger than the sum of its proper divisors (3959951259).

550433205541 is a wasteful number, since it uses less digits than its factorization.

550433205541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959951258.

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 550433205541 its reverse (145502334055), we get a palindrome (695935539596).

The spelling of 550433205541 in words is "five hundred fifty billion, four hundred thirty-three million, two hundred five thousand, five hundred forty-one".