252356204644 has 6 divisors (see below), whose sum is σ = 441623358134. Its totient is φ = 126178102320.

The previous prime is 252356204641. The next prime is 252356204663. The reversal of 252356204644 is 446402653252.

It can be written as a sum of positive squares in only one way, i.e., 239598502144 + 12757702500 = 489488^2 + 112950^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252356204644.

It is not an unprimeable number, because it can be changed into a prime (252356204641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31544525577 + ... + 31544525584.

Almost surely, 2^252356204644 is an apocalyptic number.

It is an amenable number.

252356204644 is a deficient number, since it is larger than the sum of its proper divisors (189267153490).

252356204644 is a wasteful number, since it uses less digits than its factorization.

252356204644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63089051165 (or 63089051163 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 43.

Adding to 252356204644 its reverse (446402653252), we get a palindrome (698758857896).

The spelling of 252356204644 in words is "two hundred fifty-two billion, three hundred fifty-six million, two hundred four thousand, six hundred forty-four".