252304224421 has 4 divisors (see below), whose sum is σ = 252466063200. Its totient is φ = 252142385644.

The previous prime is 252304224409. The next prime is 252304224427. The reversal of 252304224421 is 124422403252.

It is a happy number.

252304224421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 252304224421 - 2⁹ = 252304223909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252304224427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80917051 + ... + 80920168.

It is an arithmetic number, because the mean of its divisors is an integer number (63116515800).

Almost surely, 2^252304224421 is an apocalyptic number.

It is an amenable number.

252304224421 is a deficient number, since it is larger than the sum of its proper divisors (161838779).

252304224421 is a wasteful number, since it uses less digits than its factorization.

252304224421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161838778.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 252304224421 its reverse (124422403252), we get a palindrome (376726627673).

The spelling of 252304224421 in words is "two hundred fifty-two billion, three hundred four million, two hundred twenty-four thousand, four hundred twenty-one".