15242532215055 has 64 divisors (see below), whose sum is σ = 25357909248000. Its totient is φ = 7812634818560.

The previous prime is 15242532215047. The next prime is 15242532215059. The reversal of 15242532215055 is 55051223524251.

It is not a de Polignac number, because 15242532215055 - 2³ = 15242532215047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15242532214998 and 15242532215016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15242532215059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36437221 + ... + 36853169.

It is an arithmetic number, because the mean of its divisors is an integer number (396217332000).

Almost surely, 2^{15242532215055} is an apocalyptic number.

15242532215055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15242532215055 is a deficient number, since it is larger than the sum of its proper divisors (10115377032945).

15242532215055 is a wasteful number, since it uses less digits than its factorization.

15242532215055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416944.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 15242532215055 in words is "fifteen trillion, two hundred forty-two billion, five hundred thirty-two million, two hundred fifteen thousand, fifty-five".