555405216 has 48 divisors (see below), whose sum is σ = 1508220000. Its totient is φ = 178750208.

The previous prime is 555405209. The next prime is 555405217. The reversal of 555405216 is 612504555.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (555405217) 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, 96966 + ... + 102533.

It is an arithmetic number, because the mean of its divisors is an integer number (31421250).

Almost surely, 2^555405216 is an apocalyptic number.

It is an amenable number.

555405216 is an abundant number, since it is smaller than the sum of its proper divisors (952814784).

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

555405216 is a wasteful number, since it uses less digits than its factorization.

555405216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199541 (or 199533 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 555405216 is about 23567.0366401888. The cubic root of 555405216 is about 821.9965309081.

The spelling of 555405216 in words is "five hundred fifty-five million, four hundred five thousand, two hundred sixteen".