252301421532 has 12 divisors (see below), whose sum is σ = 588703316936. Its totient is φ = 84100473840.

The previous prime is 252301421473. The next prime is 252301421557. The reversal of 252301421532 is 235124103252.

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

It is a self number, because there is not a number n which added to its sum of digits gives 252301421532.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10512559219 + ... + 10512559242.

Almost surely, 2^252301421532 is an apocalyptic number.

It is an amenable number.

252301421532 is an abundant number, since it is smaller than the sum of its proper divisors (336401895404).

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

252301421532 is a wasteful number, since it uses less digits than its factorization.

252301421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21025118468 (or 21025118466 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 252301421532 its reverse (235124103252), we get a palindrome (487425524784).

The spelling of 252301421532 in words is "two hundred fifty-two billion, three hundred one million, four hundred twenty-one thousand, five hundred thirty-two".