43453225254013 has 4 divisors (see below), whose sum is σ = 44513060016348. Its totient is φ = 42393390491680.

The previous prime is 43453225254011. The next prime is 43453225254067. The reversal of 43453225254013 is 31045252235434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19483554904324 + 23969670349689 = 4414018^2 + 4895883^2 .

It is a cyclic number.

It is not a de Polignac number, because 43453225254013 - 2¹ = 43453225254011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43453225254011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529917381106 + ... + 529917381187.

It is an arithmetic number, because the mean of its divisors is an integer number (11128265004087).

Almost surely, 2^{43453225254013} is an apocalyptic number.

It is an amenable number.

43453225254013 is a deficient number, since it is larger than the sum of its proper divisors (1059834762335).

43453225254013 is a wasteful number, since it uses less digits than its factorization.

43453225254013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059834762334.

The product of its (nonzero) digits is 1728000, while the sum is 43.

Adding to 43453225254013 its reverse (31045252235434), we get a palindrome (74498477489447).

The spelling of 43453225254013 in words is "forty-three trillion, four hundred fifty-three billion, two hundred twenty-five million, two hundred fifty-four thousand, thirteen".