252431545442 has 32 divisors (see below), whose sum is σ = 391849920000. Its totient is φ = 121880246400.

The previous prime is 252431545441. The next prime is 252431545459. The reversal of 252431545442 is 244545134252.

252431545442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 252431545442.

It is not an unprimeable number, because it can be changed into a prime (252431545441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8843309 + ... + 8871807.

It is an arithmetic number, because the mean of its divisors is an integer number (12245310000).

Almost surely, 2^252431545442 is an apocalyptic number.

252431545442 is a deficient number, since it is larger than the sum of its proper divisors (139418374558).

252431545442 is a wasteful number, since it uses less digits than its factorization.

252431545442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29642.

The product of its digits is 768000, while the sum is 41.

Adding to 252431545442 its reverse (244545134252), we get a palindrome (496976679694).

The spelling of 252431545442 in words is "two hundred fifty-two billion, four hundred thirty-one million, five hundred forty-five thousand, four hundred forty-two".