550551516 has 12 divisors (see below), whose sum is σ = 1284620232. Its totient is φ = 183517168.

The previous prime is 550551503. The next prime is 550551517. The reversal of 550551516 is 615155055.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550551517) 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, 22939635 + ... + 22939658.

It is an arithmetic number, because the mean of its divisors is an integer number (107051686).

Almost surely, 2^550551516 is an apocalyptic number.

It is an amenable number.

550551516 is an abundant number, since it is smaller than the sum of its proper divisors (734068716).

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

550551516 is a wasteful number, since it uses less digits than its factorization.

550551516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45879300 (or 45879298 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 550551516 is about 23463.8342135296. The cubic root of 550551516 is about 819.5950389860.

The spelling of 550551516 in words is "five hundred fifty million, five hundred fifty-one thousand, five hundred sixteen".