550111156 has 12 divisors (see below), whose sum is σ = 1100222368. Its totient is φ = 235761912.

The previous prime is 550111141. The next prime is 550111157. The reversal of 550111156 is 651111055.

550111156 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 550111156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550111157) 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, 9823386 + ... + 9823441.

Almost surely, 2^550111156 is an apocalyptic number.

It is an amenable number.

550111156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550111156 is a wasteful number, since it uses less digits than its factorization.

550111156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19646838 (or 19646836 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

The square root of 550111156 is about 23454.4485332740. The cubic root of 550111156 is about 819.3764623222.

The spelling of 550111156 in words is "five hundred fifty million, one hundred eleven thousand, one hundred fifty-six".