252240344606 has 4 divisors (see below), whose sum is σ = 378360516912. Its totient is φ = 126120172302.

The previous prime is 252240344597. The next prime is 252240344617. The reversal of 252240344606 is 606443042252.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 252240344606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63060086150 + ... + 63060086153.

It is an arithmetic number, because the mean of its divisors is an integer number (94590129228).

Almost surely, 2^252240344606 is an apocalyptic number.

252240344606 is a deficient number, since it is larger than the sum of its proper divisors (126120172306).

252240344606 is a wasteful number, since it uses less digits than its factorization.

252240344606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126120172305.

The product of its (nonzero) digits is 276480, while the sum is 38.

Adding to 252240344606 its reverse (606443042252), we get a palindrome (858683386858).

The spelling of 252240344606 in words is "two hundred fifty-two billion, two hundred forty million, three hundred forty-four thousand, six hundred six".