252144443532 has 12 divisors (see below), whose sum is σ = 588337034936. Its totient is φ = 84048147840.

The previous prime is 252144443521. The next prime is 252144443533. The reversal of 252144443532 is 235344441252.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (252144443533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10506018469 + ... + 10506018492.

Almost surely, 2^252144443532 is an apocalyptic number.

It is an amenable number.

252144443532 is an abundant number, since it is smaller than the sum of its proper divisors (336192591404).

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

252144443532 is a wasteful number, since it uses less digits than its factorization.

252144443532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21012036968 (or 21012036966 counting only the distinct ones).

The product of its digits is 460800, while the sum is 39.

Adding to 252144443532 its reverse (235344441252), we get a palindrome (487488884784).

The spelling of 252144443532 in words is "two hundred fifty-two billion, one hundred forty-four million, four hundred forty-three thousand, five hundred thirty-two".