43442255541 has 4 divisors (see below), whose sum is σ = 57923007392. Its totient is φ = 28961503692.

The previous prime is 43442255539. The next prime is 43442255561. The reversal of 43442255541 is 14555224434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43442255541 - 2¹ = 43442255539 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43442255541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43442255561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7240375921 + ... + 7240375926.

It is an arithmetic number, because the mean of its divisors is an integer number (14480751848).

Almost surely, 2^43442255541 is an apocalyptic number.

It is an amenable number.

43442255541 is a deficient number, since it is larger than the sum of its proper divisors (14480751851).

43442255541 is a wasteful number, since it uses less digits than its factorization.

43442255541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14480751850.

The product of its digits is 384000, while the sum is 39.

Adding to 43442255541 its reverse (14555224434), we get a palindrome (57997479975).

The spelling of 43442255541 in words is "forty-three billion, four hundred forty-two million, two hundred fifty-five thousand, five hundred forty-one".