500320645 has 16 divisors (see below), whose sum is σ = 656123328. Its totient is φ = 363226240.

The previous prime is 500320627. The next prime is 500320651. The reversal of 500320645 is 546023005.

It is not a de Polignac number, because 500320645 - 2¹³ = 500312453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24537 + ... + 40033.

It is an arithmetic number, because the mean of its divisors is an integer number (41007708).

Almost surely, 2^500320645 is an apocalyptic number.

500320645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

500320645 is a deficient number, since it is larger than the sum of its proper divisors (155802683).

500320645 is a wasteful number, since it uses less digits than its factorization.

500320645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16100.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 500320645 is about 22367.8484660461. The cubic root of 500320645 is about 793.8701537992.

The spelling of 500320645 in words is "five hundred million, three hundred twenty thousand, six hundred forty-five".