2502613121 has 4 divisors (see below), whose sum is σ = 2502756144. Its totient is φ = 2502470100.

The previous prime is 2502613117. The next prime is 2502613123. The reversal of 2502613121 is 1213162052.

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.

It is a cyclic number.

It is not a de Polignac number, because 2502613121 - 2² = 2502613117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2502613123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40895 + ... + 81716.

It is an arithmetic number, because the mean of its divisors is an integer number (625689036).

Almost surely, 2^2502613121 is an apocalyptic number.

It is an amenable number.

2502613121 is a deficient number, since it is larger than the sum of its proper divisors (143023).

2502613121 is a wasteful number, since it uses less digits than its factorization.

2502613121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143022.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2502613121 is about 50026.1243851650. The cubic root of 2502613121 is about 1357.6815170814.

Adding to 2502613121 its reverse (1213162052), we get a palindrome (3715775173).

The spelling of 2502613121 in words is "two billion, five hundred two million, six hundred thirteen thousand, one hundred twenty-one".