15005131505 has 16 divisors (see below), whose sum is σ = 22161425664. Its totient is φ = 9497753280.

The previous prime is 15005131457. The next prime is 15005131507. The reversal of 15005131505 is 50513150051.

15005131505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15005131505 - 2⁸ = 15005131249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15005131507) 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 15 ways as a sum of consecutive naturals, for example, 16488701 + ... + 16489610.

It is an arithmetic number, because the mean of its divisors is an integer number (1385089104).

Almost surely, 2^15005131505 is an apocalyptic number.

It is an amenable number.

15005131505 is a deficient number, since it is larger than the sum of its proper divisors (7156294159).

15005131505 is a wasteful number, since it uses less digits than its factorization.

15005131505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32978336.

The product of its (nonzero) digits is 1875, while the sum is 26.

Adding to 15005131505 its reverse (50513150051), we get a palindrome (65518281556).

The spelling of 15005131505 in words is "fifteen billion, five million, one hundred thirty-one thousand, five hundred five".