15530055313 has 4 divisors (see below), whose sum is σ = 15573314880. Its totient is φ = 15486795748.

The previous prime is 15530055293. The next prime is 15530055347. The reversal of 15530055313 is 31355003551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31355003551 = 29 ⋅1081207019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15530055313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15530055413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21629245 + ... + 21629962.

It is an arithmetic number, because the mean of its divisors is an integer number (3893328720).

Almost surely, 2^15530055313 is an apocalyptic number.

It is an amenable number.

15530055313 is a deficient number, since it is larger than the sum of its proper divisors (43259567).

15530055313 is an equidigital number, since it uses as much as digits as its factorization.

15530055313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43259566.

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

Adding to 15530055313 its reverse (31355003551), we get a palindrome (46885058864).

The spelling of 15530055313 in words is "fifteen billion, five hundred thirty million, fifty-five thousand, three hundred thirteen".