2552602321 has 4 divisors (see below), whose sum is σ = 2552714752. Its totient is φ = 2552489892.

The previous prime is 2552602319. The next prime is 2552602363. The reversal of 2552602321 is 1232062552.

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 2552602321 - 2¹ = 2552602319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2552602321.

It is not an unprimeable number, because it can be changed into a prime (2552602121) 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, 8865 + ... + 71998.

It is an arithmetic number, because the mean of its divisors is an integer number (638178688).

Almost surely, 2^2552602321 is an apocalyptic number.

It is an amenable number.

2552602321 is a deficient number, since it is larger than the sum of its proper divisors (112431).

2552602321 is an equidigital number, since it uses as much as digits as its factorization.

2552602321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112430.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2552602321 is about 50523.2849387290. The cubic root of 2552602321 is about 1366.6617930093.

Adding to 2552602321 its reverse (1232062552), we get a palindrome (3784664873).

The spelling of 2552602321 in words is "two billion, five hundred fifty-two million, six hundred two thousand, three hundred twenty-one".