15515151505 has 48 divisors (see below), whose sum is σ = 22063104000. Its totient is φ = 10441702656.

The previous prime is 15515151481. The next prime is 15515151557. The reversal of 15515151505 is 50515151551.

15515151505 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 15515151505 - 2⁹ = 15515150993 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3028336 + ... + 3033454.

It is an arithmetic number, because the mean of its divisors is an integer number (459648000).

Almost surely, 2^15515151505 is an apocalyptic number.

It is an amenable number.

15515151505 is a deficient number, since it is larger than the sum of its proper divisors (6547952495).

15515151505 is a wasteful number, since it uses less digits than its factorization.

15515151505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366 (or 5359 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 34.

The spelling of 15515151505 in words is "fifteen billion, five hundred fifteen million, one hundred fifty-one thousand, five hundred five".