2521021144 has 16 divisors (see below), whose sum is σ = 4730996520. Its totient is φ = 1259422080.

The previous prime is 2521021133. The next prime is 2521021187. The reversal of 2521021144 is 4411201252.

2521021144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126177 + ... + 144784.

Almost surely, 2^2521021144 is an apocalyptic number.

It is an amenable number.

2521021144 is a deficient number, since it is larger than the sum of its proper divisors (2209975376).

2521021144 is a wasteful number, since it uses less digits than its factorization.

2521021144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272130 (or 272126 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2521021144 is about 50209.7713995991. The cubic root of 2521021144 is about 1361.0022067774.

Adding to 2521021144 its reverse (4411201252), we get a palindrome (6932222396).

The spelling of 2521021144 in words is "two billion, five hundred twenty-one million, twenty-one thousand, one hundred forty-four".