3505520518523 has 16 divisors (see below), whose sum is σ = 3569316262176. Its totient is φ = 3442076225280.

The previous prime is 3505520518477. The next prime is 3505520518567. The reversal of 3505520518523 is 3258150255053.

It is a cyclic number.

It is not a de Polignac number, because 3505520518523 - 2¹⁸ = 3505520256379 is a prime.

It is a super-2 number, since 2×3505520518523² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3505520511523) 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, 33598865 + ... + 33703037.

It is an arithmetic number, because the mean of its divisors is an integer number (223082266386).

Almost surely, 2^{3505520518523} is an apocalyptic number.

3505520518523 is a deficient number, since it is larger than the sum of its proper divisors (63795743653).

3505520518523 is a wasteful number, since it uses less digits than its factorization.

3505520518523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105854.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 3505520518523 in words is "three trillion, five hundred five billion, five hundred twenty million, five hundred eighteen thousand, five hundred twenty-three".