43672517055 has 24 divisors (see below), whose sum is σ = 76406505552. Its totient is φ = 23074324224.

The previous prime is 43672517039. The next prime is 43672517087. The reversal of 43672517055 is 55071527634.

It is a happy number.

It is not a de Polignac number, because 43672517055 - 2⁴ = 43672517039 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 43672517055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4530234 + ... + 4539863.

It is an arithmetic number, because the mean of its divisors is an integer number (3183604398).

Almost surely, 2^43672517055 is an apocalyptic number.

43672517055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

43672517055 is a deficient number, since it is larger than the sum of its proper divisors (32733988497).

43672517055 is a wasteful number, since it uses less digits than its factorization.

43672517055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9070215 (or 9070212 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 45.

The spelling of 43672517055 in words is "forty-three billion, six hundred seventy-two million, five hundred seventeen thousand, fifty-five".