15055321247 has 2 divisors, whose sum is σ = 15055321248. Its totient is φ = 15055321246.

The previous prime is 15055321241. The next prime is 15055321297. The reversal of 15055321247 is 74212355051.

It is a weak prime.

It is an emirp because it is prime and its reverse (74212355051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15055321247 - 2¹⁰ = 15055320223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15055321241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7527660623 + 7527660624.

It is an arithmetic number, because the mean of its divisors is an integer number (7527660624).

Almost surely, 2^15055321247 is an apocalyptic number.

15055321247 is a deficient number, since it is larger than the sum of its proper divisors (1).

15055321247 is an equidigital number, since it uses as much as digits as its factorization.

15055321247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 35.

Adding to 15055321247 its reverse (74212355051), we get a palindrome (89267676298).

The spelling of 15055321247 in words is "fifteen billion, fifty-five million, three hundred twenty-one thousand, two hundred forty-seven".