555000216 has 16 divisors (see below), whose sum is σ = 1387500600. Its totient is φ = 185000064.

The previous prime is 555000191. The next prime is 555000217. The reversal of 555000216 is 612000555.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 23125009 = 555000216 / (5 + 5 + 5 + 0 + 0 + 0 + 2 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555000217) 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, 11562481 + ... + 11562528.

Almost surely, 2^555000216 is an apocalyptic number.

It is an amenable number.

555000216 is an abundant number, since it is smaller than the sum of its proper divisors (832500384).

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

555000216 is a wasteful number, since it uses less digits than its factorization.

555000216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23125018 (or 23125014 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 555000216 is about 23558.4425631237. The cubic root of 555000216 is about 821.7966830991.

The spelling of 555000216 in words is "five hundred fifty-five million, two hundred sixteen", and thus it is an aban number.