40520207523 has 16 divisors (see below), whose sum is σ = 57287834496. Its totient is φ = 25387628160.

The previous prime is 40520207521. The next prime is 40520207537. The reversal of 40520207523 is 32570202504.

40520207523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40520207523 - 2¹ = 40520207521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40520207521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539661 + ... + 610142.

It is an arithmetic number, because the mean of its divisors is an integer number (3580489656).

Almost surely, 2^40520207523 is an apocalyptic number.

40520207523 is a deficient number, since it is larger than the sum of its proper divisors (16767626973).

40520207523 is a wasteful number, since it uses less digits than its factorization.

40520207523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150514.

The product of its (nonzero) digits is 16800, while the sum is 30.

The spelling of 40520207523 in words is "forty billion, five hundred twenty million, two hundred seven thousand, five hundred twenty-three".