543445253403 has 24 divisors (see below), whose sum is σ = 786390656832. Its totient is φ = 333672794208.

The previous prime is 543445253389. The next prime is 543445253423. The reversal of 543445253403 is 304352544345.

It is not a de Polignac number, because 543445253403 - 2⁵ = 543445253371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (543445253423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 985201 + ... + 1434402.

It is an arithmetic number, because the mean of its divisors is an integer number (32766277368).

Almost surely, 2^543445253403 is an apocalyptic number.

543445253403 is a deficient number, since it is larger than the sum of its proper divisors (242945403429).

543445253403 is a wasteful number, since it uses less digits than its factorization.

543445253403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420075 (or 2420062 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 42.

Adding to 543445253403 its reverse (304352544345), we get a palindrome (847797797748).

The spelling of 543445253403 in words is "five hundred forty-three billion, four hundred forty-five million, two hundred fifty-three thousand, four hundred three".