40041556425 has 144 divisors (see below), whose sum is σ = 80692335360. Its totient is φ = 18844116480.

The previous prime is 40041556409. The next prime is 40041556439. The reversal of 40041556425 is 52465514004.

40041556425 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 1 + 5 + 5 + 642 + 5 = 666.

It is not a de Polignac number, because 40041556425 - 2⁴ = 40041556409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40041556425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8734684 + ... + 8739266.

It is an arithmetic number, because the mean of its divisors is an integer number (560363440).

Almost surely, 2^40041556425 is an apocalyptic number.

40041556425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40041556425 is an abundant number, since it is smaller than the sum of its proper divisors (40650778935).

40041556425 is a wasteful number, since it uses less digits than its factorization.

40041556425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744 (or 4736 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 40041556425 in words is "forty billion, forty-one million, five hundred fifty-six thousand, four hundred twenty-five".