40504256055 has 96 divisors (see below), whose sum is σ = 73627287552. Its totient is φ = 20574259200.

The previous prime is 40504256041. The next prime is 40504256057. The reversal of 40504256055 is 55065240504.

40504256055 is a `hidden beast` number, since 4 + 0 + 5 + 0 + 42 + 5 + 605 + 5 = 666.

It is not a de Polignac number, because 40504256055 - 2⁶ = 40504255991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40504256057) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40871610 + ... + 40872600.

It is an arithmetic number, because the mean of its divisors is an integer number (766950912).

Almost surely, 2^40504256055 is an apocalyptic number.

40504256055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40504256055 is a deficient number, since it is larger than the sum of its proper divisors (33123031497).

40504256055 is a wasteful number, since it uses less digits than its factorization.

40504256055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 40504256055 its reverse (55065240504), we get a palindrome (95569496559).

The spelling of 40504256055 in words is "forty billion, five hundred four million, two hundred fifty-six thousand, fifty-five".