505550000506 has 4 divisors (see below), whose sum is σ = 758325000762. Its totient is φ = 252775000252.

The previous prime is 505550000477. The next prime is 505550000507. The reversal of 505550000506 is 605000055505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 465998734881 + 39551265625 = 682641^2 + 198875^2 .

It is not an unprimeable number, because it can be changed into a prime (505550000507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126387500125 + ... + 126387500128.

Almost surely, 2^505550000506 is an apocalyptic number.

505550000506 is a deficient number, since it is larger than the sum of its proper divisors (252775000256).

505550000506 is a wasteful number, since it uses less digits than its factorization.

505550000506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252775000255.

The product of its (nonzero) digits is 18750, while the sum is 31.

The spelling of 505550000506 in words is "five hundred five billion, five hundred fifty million, five hundred six", and thus it is an aban number.