15501313255 has 4 divisors (see below), whose sum is σ = 18601575912. Its totient is φ = 12401050600.

The previous prime is 15501313237. The next prime is 15501313279. The reversal of 15501313255 is 55231310551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55231310551 = 37 ⋅1492738123.

It is not a de Polignac number, because 15501313255 - 2¹⁷ = 15501182183 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550131321 + ... + 1550131330.

It is an arithmetic number, because the mean of its divisors is an integer number (4650393978).

Almost surely, 2^15501313255 is an apocalyptic number.

15501313255 is a deficient number, since it is larger than the sum of its proper divisors (3100262657).

15501313255 is an equidigital number, since it uses as much as digits as its factorization.

15501313255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100262656.

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 15501313255 in words is "fifteen billion, five hundred one million, three hundred thirteen thousand, two hundred fifty-five".