556629609 has 8 divisors (see below), whose sum is σ = 742512672. Its totient is φ = 370916480.

The previous prime is 556629547. The next prime is 556629617. The reversal of 556629609 is 906926655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556629609 - 2¹⁵ = 556596841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556621609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34632 + ... + 48089.

It is an arithmetic number, because the mean of its divisors is an integer number (92814084).

Almost surely, 2^556629609 is an apocalyptic number.

It is an amenable number.

556629609 is a deficient number, since it is larger than the sum of its proper divisors (185883063).

556629609 is a wasteful number, since it uses less digits than its factorization.

556629609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84967.

The product of its (nonzero) digits is 874800, while the sum is 48.

The square root of 556629609 is about 23592.9991522909. Note that the first 3 decimals coincide. The cubic root of 556629609 is about 822.6001191244.

The spelling of 556629609 in words is "five hundred fifty-six million, six hundred twenty-nine thousand, six hundred nine".