506505543 has 8 divisors (see below), whose sum is σ = 693593328. Its totient is φ = 328544064.

The previous prime is 506505539. The next prime is 506505547. The reversal of 506505543 is 345505605.

It is an interprime number because it is at equal distance from previous prime (506505539) and next prime (506505547).

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

It is not a de Polignac number, because 506505543 - 2² = 506505539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506505547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281446 + ... + 2281667.

It is an arithmetic number, because the mean of its divisors is an integer number (86699166).

Almost surely, 2^506505543 is an apocalyptic number.

506505543 is a deficient number, since it is larger than the sum of its proper divisors (187087785).

506505543 is a wasteful number, since it uses less digits than its factorization.

506505543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563153.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 506505543 is about 22505.6780168916. The cubic root of 506505543 is about 797.1280055438.

The spelling of 506505543 in words is "five hundred six million, five hundred five thousand, five hundred forty-three".