500944645 has 4 divisors (see below), whose sum is σ = 601133580. Its totient is φ = 400755712.

The previous prime is 500944643. The next prime is 500944649. The reversal of 500944645 is 546449005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546449005 = 5 ⋅109289801.

It can be written as a sum of positive squares in 2 ways, for example, as 349802209 + 151142436 = 18703^2 + 12294^2 .

It is a cyclic number.

It is not a de Polignac number, because 500944645 - 2¹ = 500944643 is a prime.

It is a super-3 number, since 3×500944645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500944643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50094460 + ... + 50094469.

It is an arithmetic number, because the mean of its divisors is an integer number (150283395).

Almost surely, 2^500944645 is an apocalyptic number.

It is an amenable number.

500944645 is a deficient number, since it is larger than the sum of its proper divisors (100188935).

500944645 is a wasteful number, since it uses less digits than its factorization.

500944645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100188934.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 500944645 is about 22381.7927119344. The cubic root of 500944645 is about 794.2000550199.

The spelling of 500944645 in words is "five hundred million, nine hundred forty-four thousand, six hundred forty-five".