15531330055 has 8 divisors (see below), whose sum is σ = 18638597232. Its totient is φ = 12424396608.

The previous prime is 15531330043. The next prime is 15531330071. The reversal of 15531330055 is 55003313551.

It is a happy number.

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 15531330055 - 2²¹ = 15529232903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15531329999 and 15531330026.

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 7 ways as a sum of consecutive naturals, for example, 33979 + ... + 179491.

It is an arithmetic number, because the mean of its divisors is an integer number (2329824654).

Almost surely, 2^15531330055 is an apocalyptic number.

15531330055 is a deficient number, since it is larger than the sum of its proper divisors (3107267177).

15531330055 is a wasteful number, since it uses less digits than its factorization.

15531330055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166865.

The product of its (nonzero) digits is 16875, while the sum is 31.

The spelling of 15531330055 in words is "fifteen billion, five hundred thirty-one million, three hundred thirty thousand, fifty-five".