40555056 has 20 divisors (see below), whose sum is σ = 104767352. Its totient is φ = 13518336.

The previous prime is 40555019. The next prime is 40555087. The reversal of 40555056 is 65055504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422401 + ... + 422496.

Almost surely, 2^40555056 is an apocalyptic number.

It is an amenable number.

40555056 is an abundant number, since it is smaller than the sum of its proper divisors (64212296).

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

40555056 is a wasteful number, since it uses less digits than its factorization.

40555056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844908 (or 844902 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 40555056 is about 6368.2851694942. The cubic root of 40555056 is about 343.5698156073.

The spelling of 40555056 in words is "forty million, five hundred fifty-five thousand, fifty-six".