1002205505 has 16 divisors (see below), whose sum is σ = 1455304320. Its totient is φ = 646801152.

The previous prime is 1002205481. The next prime is 1002205513. The reversal of 1002205505 is 5055022001.

It is a cyclic number.

It is not a de Polignac number, because 1002205505 - 2²⁰ = 1001156929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841595 + ... + 842784.

It is an arithmetic number, because the mean of its divisors is an integer number (90956520).

Almost surely, 2^1002205505 is an apocalyptic number.

It is an amenable number.

1002205505 is a deficient number, since it is larger than the sum of its proper divisors (453098815).

1002205505 is a wasteful number, since it uses less digits than its factorization.

1002205505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684408.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 1002205505 is about 31657.6294911669. The cubic root of 1002205505 is about 1000.7346285221.

Adding to 1002205505 its reverse (5055022001), we get a palindrome (6057227506).

The spelling of 1002205505 in words is "one billion, two million, two hundred five thousand, five hundred five".