2005530515 has 4 divisors (see below), whose sum is σ = 2406636624. Its totient is φ = 1604424408.

The previous prime is 2005530479. The next prime is 2005530559. The reversal of 2005530515 is 5150355002.

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

It is a cyclic number.

It is not a de Polignac number, because 2005530515 - 2²⁰ = 2004481939 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, 200553047 + ... + 200553056.

It is an arithmetic number, because the mean of its divisors is an integer number (601659156).

Almost surely, 2^2005530515 is an apocalyptic number.

2005530515 is a deficient number, since it is larger than the sum of its proper divisors (401106109).

2005530515 is an equidigital number, since it uses as much as digits as its factorization.

2005530515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401106108.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 2005530515 is about 44783.1499003811. The cubic root of 2005530515 is about 1261.0813164501.

Adding to 2005530515 its reverse (5150355002), we get a palindrome (7155885517).

The spelling of 2005530515 in words is "two billion, five million, five hundred thirty thousand, five hundred fifteen".