15321011055 has 48 divisors (see below), whose sum is σ = 28528627680. Its totient is φ = 7000750848.

The previous prime is 15321011009. The next prime is 15321011063. The reversal of 15321011055 is 55011012351.

15321011055 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 15321011055 - 2⁷ = 15321010927 is a prime.

It is a congruent number.

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, 2699761 + ... + 2705429.

It is an arithmetic number, because the mean of its divisors is an integer number (594346410).

Almost surely, 2^15321011055 is an apocalyptic number.

15321011055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15321011055 is a deficient number, since it is larger than the sum of its proper divisors (13207616625).

15321011055 is a wasteful number, since it uses less digits than its factorization.

15321011055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9368 (or 9361 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 15321011055 in words is "fifteen billion, three hundred twenty-one million, eleven thousand, fifty-five".