15015435055 has 4 divisors (see below), whose sum is σ = 18018522072. Its totient is φ = 12012348040.

The previous prime is 15015435049. The next prime is 15015435059. The reversal of 15015435055 is 55053451051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55053451051 = 61 ⋅902515591.

It is not a de Polignac number, because 15015435055 - 2³ = 15015435047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15015435055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15015435059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501543501 + ... + 1501543510.

It is an arithmetic number, because the mean of its divisors is an integer number (4504630518).

Almost surely, 2^15015435055 is an apocalyptic number.

15015435055 is a deficient number, since it is larger than the sum of its proper divisors (3003087017).

15015435055 is an equidigital number, since it uses as much as digits as its factorization.

15015435055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003087016.

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 15015435055 in words is "fifteen billion, fifteen million, four hundred thirty-five thousand, fifty-five".