43056780255 has 64 divisors (see below), whose sum is σ = 77399395200. Its totient is φ = 22707993600.

The previous prime is 43056780241. The next prime is 43056780257. The reversal of 43056780255 is 55208765034.

43056780255 is a `hidden beast` number, since 4 + 3 + 0 + 567 + 80 + 2 + 5 + 5 = 666.

43056780255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43056780255 - 2⁶ = 43056780191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 43056780255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43056780257) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15392517 + ... + 15395313.

It is an arithmetic number, because the mean of its divisors is an integer number (1209365550).

Almost surely, 2^43056780255 is an apocalyptic number.

43056780255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

43056780255 is a deficient number, since it is larger than the sum of its proper divisors (34342614945).

43056780255 is a wasteful number, since it uses less digits than its factorization.

43056780255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041 (or 4035 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 43056780255 in words is "forty-three billion, fifty-six million, seven hundred eighty thousand, two hundred fifty-five".