253543322443 has 8 divisors (see below), whose sum is σ = 264123263360. Its totient is φ = 243113451840.

The previous prime is 253543322441. The next prime is 253543322507. The reversal of 253543322443 is 344223345352.

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 253543322443 - 2¹ = 253543322441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253543322396 and 253543322405.

It is not an unprimeable number, because it can be changed into a prime (253543322441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37514130 + ... + 37520887.

It is an arithmetic number, because the mean of its divisors is an integer number (33015407920).

Almost surely, 2^253543322443 is an apocalyptic number.

253543322443 is a deficient number, since it is larger than the sum of its proper divisors (10579940917).

253543322443 is a wasteful number, since it uses less digits than its factorization.

253543322443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75035157.

The product of its digits is 1036800, while the sum is 40.

Adding to 253543322443 its reverse (344223345352), we get a palindrome (597766667795).

The spelling of 253543322443 in words is "two hundred fifty-three billion, five hundred forty-three million, three hundred twenty-two thousand, four hundred forty-three".