556305616 has 10 divisors (see below), whose sum is σ = 1077842162. Its totient is φ = 278152800.

The previous prime is 556305613. The next prime is 556305641. The reversal of 556305616 is 616503655.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 552062016 + 4243600 = 23496^2 + 2060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556305613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17384535 + ... + 17384566.

Almost surely, 2^556305616 is an apocalyptic number.

It is an amenable number.

556305616 is a deficient number, since it is larger than the sum of its proper divisors (521536546).

556305616 is a wasteful number, since it uses less digits than its factorization.

556305616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34769109 (or 34769103 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 556305616 is about 23586.1318575132. The cubic root of 556305616 is about 822.4404866970.

The spelling of 556305616 in words is "five hundred fifty-six million, three hundred five thousand, six hundred sixteen".