252204424 has 8 divisors (see below), whose sum is σ = 472883310. Its totient is φ = 126102208.

The previous prime is 252204389. The next prime is 252204427. The reversal of 252204424 is 424402252.

It can be written as a sum of positive squares in only one way, i.e., 249071524 + 3132900 = 15782^2 + 1770^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (252204427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15762769 + ... + 15762784.

Almost surely, 2^252204424 is an apocalyptic number.

It is an amenable number.

252204424 is a deficient number, since it is larger than the sum of its proper divisors (220678886).

252204424 is a wasteful number, since it uses less digits than its factorization.

252204424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31525559 (or 31525555 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 252204424 is about 15880.9453119139. The cubic root of 252204424 is about 631.8067093032.

Adding to 252204424 its reverse (424402252), we get a palindrome (676606676).

The spelling of 252204424 in words is "two hundred fifty-two million, two hundred four thousand, four hundred twenty-four".