43055631504 has 30 divisors (see below), whose sum is σ = 120495969126. Its totient is φ = 14351877120.

The previous prime is 43055631497. The next prime is 43055631547. The reversal of 43055631504 is 40513655034.

43055631504 is a `hidden beast` number, since 43 + 0 + 5 + 563 + 1 + 50 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28612399104 + 14443232400 = 169152^2 + 120180^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149498577 + ... + 149498864.

Almost surely, 2^43055631504 is an apocalyptic number.

It is an amenable number.

43055631504 is an abundant number, since it is smaller than the sum of its proper divisors (77440337622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43055631504 is a wasteful number, since it uses less digits than its factorization.

43055631504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298997455 (or 298997446 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 43055631504 in words is "forty-three billion, fifty-five million, six hundred thirty-one thousand, five hundred four".