11509002530 has 8 divisors (see below), whose sum is σ = 20716204572. Its totient is φ = 4603601008.

The previous prime is 11509002473. The next prime is 11509002559. The reversal of 11509002530 is 3520090511.

It can be written as a sum of positive squares in 2 ways, for example, as 11423975689 + 85026841 = 106883^2 + 9221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11509002530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575450117 + ... + 575450136.

Almost surely, 2^11509002530 is an apocalyptic number.

11509002530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11509002530 is a deficient number, since it is larger than the sum of its proper divisors (9207202042).

11509002530 is a wasteful number, since it uses less digits than its factorization.

11509002530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150900260.

The product of its (nonzero) digits is 1350, while the sum is 26.

The spelling of 11509002530 in words is "eleven billion, five hundred nine million, two thousand, five hundred thirty".