40515505553 has 8 divisors (see below), whose sum is σ = 41336305128. Its totient is φ = 39696793344.

The previous prime is 40515505549. The next prime is 40515505573. The reversal of 40515505553 is 35550551504.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10934257489 + 29581248064 = 104567^2 + 171992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40515505553 - 2² = 40515505549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40515505573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482600 + ... + 560297.

It is an arithmetic number, because the mean of its divisors is an integer number (5167038141).

Almost surely, 2^40515505553 is an apocalyptic number.

It is an amenable number.

40515505553 is a deficient number, since it is larger than the sum of its proper divisors (820799575).

40515505553 is a wasteful number, since it uses less digits than its factorization.

40515505553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043683.

The product of its (nonzero) digits is 187500, while the sum is 38.

The spelling of 40515505553 in words is "forty billion, five hundred fifteen million, five hundred five thousand, five hundred fifty-three".