15231530055 has 32 divisors (see below), whose sum is σ = 28029371904. Its totient is φ = 6918627456.

The previous prime is 15231530009. The next prime is 15231530059. The reversal of 15231530055 is 55003513251.

It is not a de Polignac number, because 15231530055 - 2⁸ = 15231529799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15231530059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445497 + ... + 478466.

It is an arithmetic number, because the mean of its divisors is an integer number (875917872).

Almost surely, 2^15231530055 is an apocalyptic number.

15231530055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15231530055 is a deficient number, since it is larger than the sum of its proper divisors (12797841849).

15231530055 is a wasteful number, since it uses less digits than its factorization.

15231530055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924135.

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 15231530055 in words is "fifteen billion, two hundred thirty-one million, five hundred thirty thousand, fifty-five".