2521511232 has 112 divisors (see below), whose sum is σ = 6990600192. Its totient is φ = 801123840.

The previous prime is 2521511231. The next prime is 2521511287. The reversal of 2521511232 is 2321151252.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521511231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395623 + ... + 401945.

Almost surely, 2^2521511232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2521511232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3495300096).

2521511232 is an abundant number, since it is smaller than the sum of its proper divisors (4469088960).

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

2521511232 is a wasteful number, since it uses less digits than its factorization.

2521511232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436 (or 6426 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 2521511232 is about 50214.6515670476. The cubic root of 2521511232 is about 1361.0903942741.

Adding to 2521511232 its reverse (2321151252), we get a palindrome (4842662484).

The spelling of 2521511232 in words is "two billion, five hundred twenty-one million, five hundred eleven thousand, two hundred thirty-two".