550549811 has 8 divisors (see below), whose sum is σ = 666211680. Its totient is φ = 444140928.

The previous prime is 550549807. The next prime is 550549829. The reversal of 550549811 is 118945055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550549811 - 2² = 550549807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550519811) 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 7 ways as a sum of consecutive naturals, for example, 2313116 + ... + 2313353.

It is an arithmetic number, because the mean of its divisors is an integer number (83276460).

Almost surely, 2^550549811 is an apocalyptic number.

550549811 is a deficient number, since it is larger than the sum of its proper divisors (115661869).

550549811 is a wasteful number, since it uses less digits than its factorization.

550549811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626493.

The product of its (nonzero) digits is 36000, while the sum is 38.

The square root of 550549811 is about 23463.7978809910. The cubic root of 550549811 is about 819.5941929187.

The spelling of 550549811 in words is "five hundred fifty million, five hundred forty-nine thousand, eight hundred eleven".