506753321 has 8 divisors (see below), whose sum is σ = 516624000. Its totient is φ = 496969200.

The previous prime is 506753309. The next prime is 506753327. The reversal of 506753321 is 123357605.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506753321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506753327) 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, 9755 + ... + 33296.

It is an arithmetic number, because the mean of its divisors is an integer number (64578000).

Almost surely, 2^506753321 is an apocalyptic number.

It is an amenable number.

506753321 is a deficient number, since it is larger than the sum of its proper divisors (9870679).

506753321 is a wasteful number, since it uses less digits than its factorization.

506753321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43279.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 506753321 is about 22511.1821324425. The cubic root of 506753321 is about 797.2579669941.

The spelling of 506753321 in words is "five hundred six million, seven hundred fifty-three thousand, three hundred twenty-one".