555616516 has 72 divisors (see below), whose sum is σ = 1224485696. Its totient is φ = 214816320.

The previous prime is 555616513. The next prime is 555616549. The reversal of 555616516 is 615616555.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (555616513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 803731 + ... + 804421.

Almost surely, 2^555616516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555616516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612242848).

555616516 is an abundant number, since it is smaller than the sum of its proper divisors (668869180).

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

555616516 is a wasteful number, since it uses less digits than its factorization.

555616516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 760 counting only the distinct ones).

The product of its digits is 135000, while the sum is 40.

The square root of 555616516 is about 23571.5191703887. The cubic root of 555616516 is about 822.1007586206.

The spelling of 555616516 in words is "five hundred fifty-five million, six hundred sixteen thousand, five hundred sixteen".