43081200505553 has 4 divisors (see below), whose sum is σ = 49235657720640. Its totient is φ = 36926743290468.

The previous prime is 43081200505547. The next prime is 43081200505589. The reversal of 43081200505553 is 35550500218034.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 43081200505553 - 2⁸ = 43081200505297 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 43081200505553.

It is not an unprimeable number, because it can be changed into a prime (43081200505513) 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, 3077228607533 + ... + 3077228607546.

It is an arithmetic number, because the mean of its divisors is an integer number (12308914430160).

Almost surely, 2^{43081200505553} is an apocalyptic number.

It is an amenable number.

43081200505553 is a deficient number, since it is larger than the sum of its proper divisors (6154457215087).

43081200505553 is an equidigital number, since it uses as much as digits as its factorization.

43081200505553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6154457215086.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 43081200505553 in words is "forty-three trillion, eighty-one billion, two hundred million, five hundred five thousand, five hundred fifty-three".