2015543552 has 72 divisors (see below), whose sum is σ = 4432209600. Its totient is φ = 907130880.

The previous prime is 2015543539. The next prime is 2015543581. The reversal of 2015543552 is 2553455102.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286574 + ... + 293522.

Almost surely, 2^2015543552 is an apocalyptic number.

2015543552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015543552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2216104800).

2015543552 is an abundant number, since it is smaller than the sum of its proper divisors (2416666048).

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

2015543552 is a wasteful number, since it uses less digits than its factorization.

2015543552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7079 (or 7065 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 2015543552 is about 44894.8054010706. The cubic root of 2015543552 is about 1263.1765720669.

Adding to 2015543552 its reverse (2553455102), we get a palindrome (4568998654).

The spelling of 2015543552 in words is "two billion, fifteen million, five hundred forty-three thousand, five hundred fifty-two".