556498216 has 8 divisors (see below), whose sum is σ = 1043434170. Its totient is φ = 278249104.

The previous prime is 556498211. The next prime is 556498237. The reversal of 556498216 is 612894655.

It can be written as a sum of positive squares in only one way, i.e., 545409316 + 11088900 = 23354^2 + 3330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×556498216² = 619380528822365312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) 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 (556498211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34781131 + ... + 34781146.

Almost surely, 2^556498216 is an apocalyptic number.

556498216 is the 12610-th centered heptagonal number.

It is an amenable number.

556498216 is a deficient number, since it is larger than the sum of its proper divisors (486935954).

556498216 is a wasteful number, since it uses less digits than its factorization.

556498216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69562283 (or 69562279 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 556498216 is about 23590.2144119124. The cubic root of 556498216 is about 822.5353888254.

The spelling of 556498216 in words is "five hundred fifty-six million, four hundred ninety-eight thousand, two hundred sixteen".