550030405 has 8 divisors (see below), whose sum is σ = 660165912. Its totient is φ = 439938048.

The previous prime is 550030381. The next prime is 550030423. The reversal of 550030405 is 504030055.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5134756 + 544895649 = 2266^2 + 23343^2 .

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 550030405 - 2⁷ = 550030277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34717 + ... + 48013.

It is an arithmetic number, because the mean of its divisors is an integer number (82520739).

Almost surely, 2^550030405 is an apocalyptic number.

It is an amenable number.

550030405 is a deficient number, since it is larger than the sum of its proper divisors (110135507).

550030405 is a wasteful number, since it uses less digits than its factorization.

550030405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21575.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 550030405 is about 23452.7270269365. The cubic root of 550030405 is about 819.3363681789.

The spelling of 550030405 in words is "five hundred fifty million, thirty thousand, four hundred five".