501506343 has 16 divisors (see below), whose sum is σ = 800124640. Its totient is φ = 308619072.

The previous prime is 501506303. The next prime is 501506351. The reversal of 501506343 is 343605105.

It is not a de Polignac number, because 501506343 - 2¹⁸ = 501244199 is a prime.

It is a super-2 number, since 2×501506343² = 503017224138467298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501506303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714046 + ... + 714747.

It is an arithmetic number, because the mean of its divisors is an integer number (50007790).

Almost surely, 2^501506343 is an apocalyptic number.

501506343 is a deficient number, since it is larger than the sum of its proper divisors (298618297).

501506343 is a wasteful number, since it uses less digits than its factorization.

501506343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428815 (or 1428809 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 501506343 is about 22394.3372976295. The cubic root of 501506343 is about 794.4967837147.

The spelling of 501506343 in words is "five hundred one million, five hundred six thousand, three hundred forty-three".