550405322 has 4 divisors (see below), whose sum is σ = 825607986. Its totient is φ = 275202660.

The previous prime is 550405321. The next prime is 550405333. The reversal of 550405322 is 223504055.

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

It can be written as a sum of positive squares in only one way, i.e., 333756361 + 216648961 = 18269^2 + 14719^2 .

It is a super-3 number, since 3×550405322³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550405291 and 550405300.

It is not an unprimeable number, because it can be changed into a prime (550405321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137601329 + ... + 137601332.

Almost surely, 2^550405322 is an apocalyptic number.

550405322 is a deficient number, since it is larger than the sum of its proper divisors (275202664).

550405322 is a wasteful number, since it uses less digits than its factorization.

550405322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275202663.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 550405322 is about 23460.7187016937. The cubic root of 550405322 is about 819.5224872018.

Adding to 550405322 its reverse (223504055), we get a palindrome (773909377).

The spelling of 550405322 in words is "five hundred fifty million, four hundred five thousand, three hundred twenty-two".