2521223232 has 56 divisors (see below), whose sum is σ = 7277173152. Its totient is φ = 764006400.

The previous prime is 2521223219. The next prime is 2521223251. The reversal of 2521223232 is 2323221252.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594769 + ... + 598992.

Almost surely, 2^2521223232 is an apocalyptic number.

2521223232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2521223232 is an abundant number, since it is smaller than the sum of its proper divisors (4755949920).

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

2521223232 is a wasteful number, since it uses less digits than its factorization.

2521223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193787 (or 1193777 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 2521223232 is about 50211.7837962365. The cubic root of 2521223232 is about 1361.0385723146.

Adding to 2521223232 its reverse (2323221252), we get a palindrome (4844444484).

The spelling of 2521223232 in words is "two billion, five hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty-two".