15131215255 has 8 divisors (see below), whose sum is σ = 19554185952. Its totient is φ = 11173820448.

The previous prime is 15131215243. The next prime is 15131215259. The reversal of 15131215255 is 55251213151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15131215255 - 2⁵ = 15131215223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15131215259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116393899 + ... + 116394028.

It is an arithmetic number, because the mean of its divisors is an integer number (2444273244).

Almost surely, 2^15131215255 is an apocalyptic number.

15131215255 is a deficient number, since it is larger than the sum of its proper divisors (4422970697).

15131215255 is a wasteful number, since it uses less digits than its factorization.

15131215255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232787945.

The product of its digits is 7500, while the sum is 31.

The spelling of 15131215255 in words is "fifteen billion, one hundred thirty-one million, two hundred fifteen thousand, two hundred fifty-five".