252443643002 has 4 divisors (see below), whose sum is σ = 378665464506. Its totient is φ = 126221821500.

The previous prime is 252443642993. The next prime is 252443643029. The reversal of 252443643002 is 200346344252.

It is a happy number.

252443643002 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.

It can be written as a sum of positive squares in only one way, i.e., 251032062961 + 1411580041 = 501031^2 + 37571^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 63110910749 + ... + 63110910752.

Almost surely, 2^252443643002 is an apocalyptic number.

252443643002 is a deficient number, since it is larger than the sum of its proper divisors (126221821504).

252443643002 is a wasteful number, since it uses less digits than its factorization.

252443643002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126221821503.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 252443643002 its reverse (200346344252), we get a palindrome (452789987254).

The spelling of 252443643002 in words is "two hundred fifty-two billion, four hundred forty-three million, six hundred forty-three thousand, two".