473053708521 has 15 divisors (see below), whose sum is σ = 706669725223. Its totient is φ = 315365012280.

The previous prime is 473053708513. The next prime is 473053708573. The reversal of 473053708521 is 125807350374.

The square root of 473053708521 is 687789.

It is a perfect power (a square), and thus also a powerful number.

473053708521 is a `hidden beast` number, since 4 + 7 + 3 + 0 + 53 + 70 + 8 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18642898521 + 454410810000 = 136539^2 + 674100^2 .

It is not a de Polignac number, because 473053708521 - 2³ = 473053708513 is a prime.

It is a super-2 number, since 2×473053708521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (473053708021) 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 14 ways as a sum of consecutive naturals, for example, 6151891 + ... + 6228311.

Almost surely, 2^473053708521 is an apocalyptic number.

473053708521 is the 687789-th square number.

473053708521 is the 343895-th centered octagonal number.

It is an amenable number.

473053708521 is a deficient number, since it is larger than the sum of its proper divisors (233616016702).

473053708521 is an frugal number, since it uses more digits than its factorization.

473053708521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152854 (or 76424 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 473053708521 in words is "four hundred seventy-three billion, fifty-three million, seven hundred eight thousand, five hundred twenty-one".