505530525305 has 8 divisors (see below), whose sum is σ = 653300986632. Its totient is φ = 373314849408.

The previous prime is 505530525287. The next prime is 505530525317. The reversal of 505530525305 is 503525035505.

It can be written as a sum of positive squares in 4 ways, for example, as 15356909929 + 490173615376 = 123923^2 + 700124^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505530525305 - 2¹⁶ = 505530459769 is a prime.

It is a super-2 number, since 2×505530525305² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888696284 + ... + 3888696413.

It is an arithmetic number, because the mean of its divisors is an integer number (81662623329).

Almost surely, 2^505530525305 is an apocalyptic number.

It is an amenable number.

505530525305 is a deficient number, since it is larger than the sum of its proper divisors (147770461327).

505530525305 is a wasteful number, since it uses less digits than its factorization.

505530525305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7777392715.

The product of its (nonzero) digits is 281250, while the sum is 38.

The spelling of 505530525305 in words is "five hundred five billion, five hundred thirty million, five hundred twenty-five thousand, three hundred five".