43011578255 has 4 divisors (see below), whose sum is σ = 51613893912. Its totient is φ = 34409262600.

The previous prime is 43011578231. The next prime is 43011578257. The reversal of 43011578255 is 55287511034.

It is a happy number.

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

It is not a de Polignac number, because 43011578255 - 2²⁶ = 42944469391 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 (43011578257) 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, 4301157821 + ... + 4301157830.

It is an arithmetic number, because the mean of its divisors is an integer number (12903473478).

Almost surely, 2^43011578255 is an apocalyptic number.

43011578255 is a deficient number, since it is larger than the sum of its proper divisors (8602315657).

43011578255 is an equidigital number, since it uses as much as digits as its factorization.

43011578255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8602315656.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 43011578255 in words is "forty-three billion, eleven million, five hundred seventy-eight thousand, two hundred fifty-five".