40013125563 has 12 divisors (see below), whose sum is σ = 56306560488. Its totient is φ = 25271447040.

The previous prime is 40013125517. The next prime is 40013125577. The reversal of 40013125563 is 36552131004.

It is not a de Polignac number, because 40013125563 - 2⁶ = 40013125499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40013125563.

It is not an unprimeable number, because it can be changed into a prime (40013125363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18472198 + ... + 18474363.

It is an arithmetic number, because the mean of its divisors is an integer number (4692213374).

Almost surely, 2^40013125563 is an apocalyptic number.

40013125563 is a deficient number, since it is larger than the sum of its proper divisors (16293434925).

40013125563 is a wasteful number, since it uses less digits than its factorization.

40013125563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36946602 (or 36946583 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 40013125563 its reverse (36552131004), we get a palindrome (76565256567).

The spelling of 40013125563 in words is "forty billion, thirteen million, one hundred twenty-five thousand, five hundred sixty-three".