556561550505 has 8 divisors (see below), whose sum is σ = 890498480832. Its totient is φ = 296832826928.

The previous prime is 556561550473. The next prime is 556561550527. The reversal of 556561550505 is 505055165655.

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 556561550505 - 2⁵ = 556561550473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18552051669 + ... + 18552051698.

It is an arithmetic number, because the mean of its divisors is an integer number (111312310104).

Almost surely, 2^556561550505 is an apocalyptic number.

It is an amenable number.

556561550505 is a deficient number, since it is larger than the sum of its proper divisors (333936930327).

556561550505 is a wasteful number, since it uses less digits than its factorization.

556561550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37104103375.

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 556561550505 in words is "five hundred fifty-six billion, five hundred sixty-one million, five hundred fifty thousand, five hundred five".