2502000021 has 16 divisors (see below), whose sum is σ = 3486219264. Its totient is φ = 1594541424.

The previous prime is 2502000019. The next prime is 2502000043. The reversal of 2502000021 is 1200002052.

2502000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2502000021 - 2¹ = 2502000019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2501999970 and 2502000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2502000091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200271 + ... + 212396.

It is an arithmetic number, because the mean of its divisors is an integer number (217888704).

Almost surely, 2^2502000021 is an apocalyptic number.

It is an amenable number.

2502000021 is a deficient number, since it is larger than the sum of its proper divisors (984219243).

2502000021 is a wasteful number, since it uses less digits than its factorization.

2502000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412760.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2502000021 is about 50019.9962115153. The cubic root of 2502000021 is about 1357.5706379747.

Adding to 2502000021 its reverse (1200002052), we get a palindrome (3702002073).

The spelling of 2502000021 in words is "two billion, five hundred two million, twenty-one", and thus it is an aban number.