2521044128 has 24 divisors (see below), whose sum is σ = 4964470560. Its totient is φ = 1260226240.

The previous prime is 2521044103. The next prime is 2521044131. The reversal of 2521044128 is 8214401252.

It is a self number, because there is not a number n which added to its sum of digits gives 2521044128.

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, 207173 + ... + 219003.

It is an arithmetic number, because the mean of its divisors is an integer number (206852940).

Almost surely, 2^2521044128 is an apocalyptic number.

It is an amenable number.

2521044128 is a deficient number, since it is larger than the sum of its proper divisors (2443426432).

2521044128 is a wasteful number, since it uses less digits than its factorization.

2521044128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500 (or 18492 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 2521044128 is about 50210.0002788289. Note that the first 3 decimals coincide. The cubic root of 2521044128 is about 1361.0063428235.

The spelling of 2521044128 in words is "two billion, five hundred twenty-one million, forty-four thousand, one hundred twenty-eight".