252444442544 has 80 divisors (see below), whose sum is σ = 595698444288. Its totient is φ = 101284651776.

The previous prime is 252444442541. The next prime is 252444442553. The reversal of 252444442544 is 445244444252.

It is a junction number, because it is equal to n+sod(n) for n = 252444442495 and 252444442504.

It is not an unprimeable number, because it can be changed into a prime (252444442541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921467 + ... + 1163610.

Almost surely, 2^252444442544 is an apocalyptic number.

It is an amenable number.

252444442544 is an abundant number, since it is smaller than the sum of its proper divisors (343254001744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252444442544 is a wasteful number, since it uses less digits than its factorization.

252444442544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085162 (or 2085156 counting only the distinct ones).

The product of its digits is 3276800, while the sum is 44.

Adding to 252444442544 its reverse (445244444252), we get a palindrome (697688886796).

The spelling of 252444442544 in words is "two hundred fifty-two billion, four hundred forty-four million, four hundred forty-two thousand, five hundred forty-four".