43420454203025 has 6 divisors (see below), whose sum is σ = 53841363211782. Its totient is φ = 34736363362400.

The previous prime is 43420454202913. The next prime is 43420454203043. The reversal of 43420454203025 is 52030245402434.

It can be written as a sum of positive squares in 3 ways, for example, as 12232953934096 + 31187500268929 = 3497564^2 + 5584577^2 .

It is not a de Polignac number, because 43420454203025 - 2¹⁸ = 43420453940881 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 43420454203025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 868409084036 + ... + 868409084085.

It is an arithmetic number, because the mean of its divisors is an integer number (8973560535297).

Almost surely, 2^{43420454203025} is an apocalyptic number.

It is an amenable number.

43420454203025 is a deficient number, since it is larger than the sum of its proper divisors (10420909008757).

43420454203025 is a wasteful number, since it uses less digits than its factorization.

43420454203025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736818168131 (or 1736818168126 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 43420454203025 its reverse (52030245402434), we get a palindrome (95450699605459).

The spelling of 43420454203025 in words is "forty-three trillion, four hundred twenty billion, four hundred fifty-four million, two hundred three thousand, twenty-five".