1016550505 has 4 divisors (see below), whose sum is σ = 1219860612. Its totient is φ = 813240400.

The previous prime is 1016550497. The next prime is 1016550511. The reversal of 1016550505 is 5050556101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 696748816 + 319801689 = 26396^2 + 17883^2 .

It is not a de Polignac number, because 1016550505 - 2³ = 1016550497 is a prime.

It is a Duffinian number.

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, 101655046 + ... + 101655055.

It is an arithmetic number, because the mean of its divisors is an integer number (304965153).

Almost surely, 2^1016550505 is an apocalyptic number.

It is an amenable number.

1016550505 is a deficient number, since it is larger than the sum of its proper divisors (203310107).

1016550505 is an equidigital number, since it uses as much as digits as its factorization.

1016550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203310106.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1016550505 is about 31883.3891705383. The cubic root of 1016550505 is about 1005.4866763266.

The spelling of 1016550505 in words is "one billion, sixteen million, five hundred fifty thousand, five hundred five".