15530513205 has 16 divisors (see below), whose sum is σ = 25454890944. Its totient is φ = 8080917120.

The previous prime is 15530513191. The next prime is 15530513209. The reversal of 15530513205 is 50231503551.

It is not a de Polignac number, because 15530513205 - 2¹² = 15530509109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15530513209) 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 15 ways as a sum of consecutive naturals, for example, 12625819 + ... + 12627048.

It is an arithmetic number, because the mean of its divisors is an integer number (1590930684).

Almost surely, 2^15530513205 is an apocalyptic number.

15530513205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15530513205 is a deficient number, since it is larger than the sum of its proper divisors (9924377739).

15530513205 is a wasteful number, since it uses less digits than its factorization.

15530513205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25252916.

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

The spelling of 15530513205 in words is "fifteen billion, five hundred thirty million, five hundred thirteen thousand, two hundred five".