40565055513 has 8 divisors (see below), whose sum is σ = 54622253376. Its totient is φ = 26775614000.

The previous prime is 40565055497. The next prime is 40565055521. The reversal of 40565055513 is 31555056504.

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 40565055513 - 2⁴ = 40565055497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40565155513) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66938733 + ... + 66939338.

It is an arithmetic number, because the mean of its divisors is an integer number (6827781672).

Almost surely, 2^40565055513 is an apocalyptic number.

It is an amenable number.

40565055513 is a deficient number, since it is larger than the sum of its proper divisors (14057197863).

40565055513 is a wasteful number, since it uses less digits than its factorization.

40565055513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133878175.

The product of its (nonzero) digits is 225000, while the sum is 39.

Subtracting from 40565055513 its reverse (31555056504), we obtain a palindrome (9009999009).

The spelling of 40565055513 in words is "forty billion, five hundred sixty-five million, fifty-five thousand, five hundred thirteen".