2521244001044 has 12 divisors (see below), whose sum is σ = 4412218293504. Its totient is φ = 1260610202904.

The previous prime is 2521244001007. The next prime is 2521244001047. The reversal of 2521244001044 is 4401004421252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2521244000998 and 2521244001016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521244001047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2459522 + ... + 3330425.

It is an arithmetic number, because the mean of its divisors is an integer number (367684857792).

Almost surely, 2^{2521244001044} is an apocalyptic number.

It is an amenable number.

2521244001044 is a deficient number, since it is larger than the sum of its proper divisors (1890974292460).

2521244001044 is a wasteful number, since it uses less digits than its factorization.

2521244001044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898814 (or 5898812 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 2521244001044 its reverse (4401004421252), we get a palindrome (6922248422296).

The spelling of 2521244001044 in words is "two trillion, five hundred twenty-one billion, two hundred forty-four million, one thousand, forty-four".