475520454013 has 4 divisors (see below), whose sum is σ = 518749586208. Its totient is φ = 432291321820.

The previous prime is 475520453999. The next prime is 475520454047. The reversal of 475520454013 is 310454025574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475520454013 is a prime.

It is a super-2 number, since 2×475520454013² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475520454053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21614566081 + ... + 21614566102.

It is an arithmetic number, because the mean of its divisors is an integer number (129687396552).

Almost surely, 2^475520454013 is an apocalyptic number.

It is an amenable number.

475520454013 is a deficient number, since it is larger than the sum of its proper divisors (43229132195).

475520454013 is a wasteful number, since it uses less digits than its factorization.

475520454013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43229132194.

The product of its (nonzero) digits is 336000, while the sum is 40.

Adding to 475520454013 its reverse (310454025574), we get a palindrome (785974479587).

The spelling of 475520454013 in words is "four hundred seventy-five billion, five hundred twenty million, four hundred fifty-four thousand, thirteen".