43402213544225 has 12 divisors (see below), whose sum is σ = 54211582352364. Its totient is φ = 34468327249920.

The previous prime is 43402213544213. The next prime is 43402213544273. The reversal of 43402213544225 is 52244531220434.

It can be written as a sum of positive squares in 6 ways, for example, as 176756339776 + 43225457204449 = 420424^2 + 6574607^2 .

It is a de Polignac number, because none of the positive numbers 2^k-43402213544225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6336086144 + ... + 6336092993.

It is an arithmetic number, because the mean of its divisors is an integer number (4517631862697).

Almost surely, 2^{43402213544225} is an apocalyptic number.

It is an amenable number.

43402213544225 is a deficient number, since it is larger than the sum of its proper divisors (10809368808139).

43402213544225 is a wasteful number, since it uses less digits than its factorization.

43402213544225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12672179284 (or 12672179279 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 43402213544225 its reverse (52244531220434), we get a palindrome (95646744764659).

The spelling of 43402213544225 in words is "forty-three trillion, four hundred two billion, two hundred thirteen million, five hundred forty-four thousand, two hundred twenty-five".