505556306546 has 8 divisors (see below), whose sum is σ = 759824312940. Its totient is φ = 252281535568.

The previous prime is 505556306537. The next prime is 505556306551. The reversal of 505556306546 is 645603655505.

It can be written as a sum of positive squares in 2 ways, for example, as 500535025225 + 5021281321 = 707485^2 + 70861^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 505556306494 and 505556306503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248307581 + ... + 248309616.

Almost surely, 2^505556306546 is an apocalyptic number.

505556306546 is a deficient number, since it is larger than the sum of its proper divisors (254268006394).

505556306546 is a wasteful number, since it uses less digits than its factorization.

505556306546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496617708.

The product of its (nonzero) digits is 8100000, while the sum is 50.

The spelling of 505556306546 in words is "five hundred five billion, five hundred fifty-six million, three hundred six thousand, five hundred forty-six".