2502343021 has 4 divisors (see below), whose sum is σ = 2502446752. Its totient is φ = 2502239292.

The previous prime is 2502342991. The next prime is 2502343049. The reversal of 2502343021 is 1203432052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2502343021 - 2⁹ = 2502342509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2502342983 and 2502343001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2502349021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5386 + ... + 70948.

It is an arithmetic number, because the mean of its divisors is an integer number (625611688).

Almost surely, 2^2502343021 is an apocalyptic number.

It is an amenable number.

2502343021 is a deficient number, since it is larger than the sum of its proper divisors (103731).

2502343021 is an equidigital number, since it uses as much as digits as its factorization.

2502343021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103730.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2502343021 is about 50023.4247228236. The cubic root of 2502343021 is about 1357.6326717408.

Adding to 2502343021 its reverse (1203432052), we get a palindrome (3705775073).

The spelling of 2502343021 in words is "two billion, five hundred two million, three hundred forty-three thousand, twenty-one".