550053811 has 4 divisors (see below), whose sum is σ = 550207800. Its totient is φ = 549899824.

The previous prime is 550053797. The next prime is 550053839. The reversal of 550053811 is 118350055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118350055 = 5 ⋅23670011.

It is a cyclic number.

It is not a de Polignac number, because 550053811 - 2⁹ = 550053299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550053811.

It is not an unprimeable number, because it can be changed into a prime (550053841) 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, 71506 + ... + 78823.

It is an arithmetic number, because the mean of its divisors is an integer number (137551950).

Almost surely, 2^550053811 is an apocalyptic number.

550053811 is a deficient number, since it is larger than the sum of its proper divisors (153989).

550053811 is a wasteful number, since it uses less digits than its factorization.

550053811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153988.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 550053811 is about 23453.2260254320. The cubic root of 550053811 is about 819.3479900304.

The spelling of 550053811 in words is "five hundred fifty million, fifty-three thousand, eight hundred eleven".