556506616 has 8 divisors (see below), whose sum is σ = 1043449920. Its totient is φ = 278253304.

The previous prime is 556506593. The next prime is 556506619. The reversal of 556506616 is 616605655.

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

It is a super-2 number, since 2×556506616² = 619399227303542912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556506619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34781656 + ... + 34781671.

It is an arithmetic number, because the mean of its divisors is an integer number (130431240).

Almost surely, 2^556506616 is an apocalyptic number.

It is an amenable number.

556506616 is a deficient number, since it is larger than the sum of its proper divisors (486943304).

556506616 is a wasteful number, since it uses less digits than its factorization.

556506616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69563333 (or 69563329 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 556506616 is about 23590.3924511654. The cubic root of 556506616 is about 822.5395273607.

The spelling of 556506616 in words is "five hundred fifty-six million, five hundred six thousand, six hundred sixteen".