252651431543 has 8 divisors (see below), whose sum is σ = 288947417088. Its totient is φ = 216406176984.

The previous prime is 252651431519. The next prime is 252651431597. The reversal of 252651431543 is 345134156252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252651431543 - 2⁸ = 252651431287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252651431543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252651431443) 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 7 ways as a sum of consecutive naturals, for example, 12672071 + ... + 12691992.

It is an arithmetic number, because the mean of its divisors is an integer number (36118427136).

Almost surely, 2^252651431543 is an apocalyptic number.

252651431543 is a deficient number, since it is larger than the sum of its proper divisors (36295985545).

252651431543 is a wasteful number, since it uses less digits than its factorization.

252651431543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25365493.

The product of its digits is 432000, while the sum is 41.

Adding to 252651431543 its reverse (345134156252), we get a palindrome (597785587795).

The spelling of 252651431543 in words is "two hundred fifty-two billion, six hundred fifty-one million, four hundred thirty-one thousand, five hundred forty-three".