1513507505073 has 4 divisors (see below), whose sum is σ = 2018010006768. Its totient is φ = 1009005003380.

The previous prime is 1513507505057. The next prime is 1513507505093. The reversal of 1513507505073 is 3705057053151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1513507505073 - 2⁴ = 1513507505057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1513507505093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252251250843 + ... + 252251250848.

It is an arithmetic number, because the mean of its divisors is an integer number (504502501692).

Almost surely, 2^{1513507505073} is an apocalyptic number.

It is an amenable number.

1513507505073 is a deficient number, since it is larger than the sum of its proper divisors (504502501695).

1513507505073 is an equidigital number, since it uses as much as digits as its factorization.

1513507505073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504502501694.

The product of its (nonzero) digits is 275625, while the sum is 42.

The spelling of 1513507505073 in words is "one trillion, five hundred thirteen billion, five hundred seven million, five hundred five thousand, seventy-three".