550045405 has 32 divisors (see below), whose sum is σ = 816076800. Its totient is φ = 346574592.

The previous prime is 550045393. The next prime is 550045409. The reversal of 550045405 is 504540055.

It is not a de Polignac number, because 550045405 - 2⁵ = 550045373 is a prime.

It is a super-2 number, since 2×550045405² = 605099895123228050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550045409) 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 31 ways as a sum of consecutive naturals, for example, 101556 + ... + 106834.

It is an arithmetic number, because the mean of its divisors is an integer number (25502400).

Almost surely, 2^550045405 is an apocalyptic number.

It is an amenable number.

550045405 is a deficient number, since it is larger than the sum of its proper divisors (266031395).

550045405 is a wasteful number, since it uses less digits than its factorization.

550045405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 550045405 is about 23453.0468169916. The cubic root of 550045405 is about 819.3438162119.

It can be divided in two parts, 5500 and 45405, that added together give a palindrome (50905).

The spelling of 550045405 in words is "five hundred fifty million, forty-five thousand, four hundred five".