2015320530 has 16 divisors (see below), whose sum is σ = 4836769344. Its totient is φ = 537418800.

The previous prime is 2015320523. The next prime is 2015320543. The reversal of 2015320530 is 350235102.

It is a junction number, because it is equal to n+sod(n) for n = 2015320497 and 2015320506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33588646 + ... + 33588705.

It is an arithmetic number, because the mean of its divisors is an integer number (302298084).

Almost surely, 2^2015320530 is an apocalyptic number.

2015320530 is an abundant number, since it is smaller than the sum of its proper divisors (2821448814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015320530 is a wasteful number, since it uses less digits than its factorization.

2015320530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67177361.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2015320530 is about 44892.3215037939. The cubic root of 2015320530 is about 1263.1299797459.

Adding to 2015320530 its reverse (350235102), we get a palindrome (2365555632).

The spelling of 2015320530 in words is "two billion, fifteen million, three hundred twenty thousand, five hundred thirty".