1513505505 has 16 divisors (see below), whose sum is σ = 2505113280. Its totient is φ = 779368128.

The previous prime is 1513505489. The next prime is 1513505507. The reversal of 1513505505 is 5055053151.

It is not a de Polignac number, because 1513505505 - 2⁴ = 1513505489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1513505507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1739227 + ... + 1740096.

It is an arithmetic number, because the mean of its divisors is an integer number (156569580).

Almost surely, 2^1513505505 is an apocalyptic number.

1513505505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1513505505 is a deficient number, since it is larger than the sum of its proper divisors (991607775).

1513505505 is a wasteful number, since it uses less digits than its factorization.

1513505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479360.

The product of its (nonzero) digits is 9375, while the sum is 30.

The square root of 1513505505 is about 38903.7980793650. The cubic root of 1513505505 is about 1148.1395260836.

Adding to 1513505505 its reverse (5055053151), we get a palindrome (6568558656).

The spelling of 1513505505 in words is "one billion, five hundred thirteen million, five hundred five thousand, five hundred five".