506556343 has 4 divisors (see below), whose sum is σ = 509956200. Its totient is φ = 503156488.

The previous prime is 506556341. The next prime is 506556367. The reversal of 506556343 is 343655605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506556343 - 2¹ = 506556341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506556341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699705 + ... + 1700002.

It is an arithmetic number, because the mean of its divisors is an integer number (127489050).

Almost surely, 2^506556343 is an apocalyptic number.

506556343 is a deficient number, since it is larger than the sum of its proper divisors (3399857).

506556343 is a wasteful number, since it uses less digits than its factorization.

506556343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399856.

The product of its (nonzero) digits is 162000, while the sum is 37.

The square root of 506556343 is about 22506.8065926732. The cubic root of 506556343 is about 797.1546539846.

The spelling of 506556343 in words is "five hundred six million, five hundred fifty-six thousand, three hundred forty-three".