15242542255 has 4 divisors (see below), whose sum is σ = 18291050712. Its totient is φ = 12194033800.

The previous prime is 15242542229. The next prime is 15242542283. The reversal of 15242542255 is 55224524251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55224524251 = 13 ⋅4248040327.

It is not a de Polignac number, because 15242542255 - 2²⁵ = 15208987823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524254221 + ... + 1524254230.

It is an arithmetic number, because the mean of its divisors is an integer number (4572762678).

Almost surely, 2^15242542255 is an apocalyptic number.

15242542255 is a deficient number, since it is larger than the sum of its proper divisors (3048508457).

15242542255 is an equidigital number, since it uses as much as digits as its factorization.

15242542255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048508456.

The product of its digits is 160000, while the sum is 37.

The spelling of 15242542255 in words is "fifteen billion, two hundred forty-two million, five hundred forty-two thousand, two hundred fifty-five".