500513645 has 8 divisors (see below), whose sum is σ = 604442904. Its totient is φ = 397859904.

The previous prime is 500513641. The next prime is 500513683. The reversal of 500513645 is 546315005.

It can be written as a sum of positive squares in 4 ways, for example, as 5317636 + 495196009 = 2306^2 + 22253^2 .

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 500513645 - 2² = 500513641 is a prime.

It is a super-3 number, since 3×500513645³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500513641) 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 7 ways as a sum of consecutive naturals, for example, 318014 + ... + 319583.

It is an arithmetic number, because the mean of its divisors is an integer number (75555363).

Almost surely, 2^500513645 is an apocalyptic number.

It is an amenable number.

500513645 is a deficient number, since it is larger than the sum of its proper divisors (103929259).

500513645 is a wasteful number, since it uses less digits than its factorization.

500513645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637759.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 500513645 is about 22372.1622781527. The cubic root of 500513645 is about 793.9722198403.

The spelling of 500513645 in words is "five hundred million, five hundred thirteen thousand, six hundred forty-five".