550641633 has 4 divisors (see below), whose sum is σ = 734188848. Its totient is φ = 367094420.

The previous prime is 550641629. The next prime is 550641661. The reversal of 550641633 is 336146055.

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 550641633 - 2² = 550641629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550641594 and 550641603.

It is not an unprimeable number, because it can be changed into a prime (550643633) 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, 91773603 + ... + 91773608.

It is an arithmetic number, because the mean of its divisors is an integer number (183547212).

Almost surely, 2^550641633 is an apocalyptic number.

It is an amenable number.

550641633 is a deficient number, since it is larger than the sum of its proper divisors (183547215).

550641633 is a wasteful number, since it uses less digits than its factorization.

550641633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183547214.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 550641633 is about 23465.7544732745. The cubic root of 550641633 is about 819.6397550053.

Adding to 550641633 its reverse (336146055), we get a palindrome (886787688).

The spelling of 550641633 in words is "five hundred fifty million, six hundred forty-one thousand, six hundred thirty-three".