500005605 has 32 divisors (see below), whose sum is σ = 896335488. Its totient is φ = 235872000.

The previous prime is 500005601. The next prime is 500005607. The reversal of 500005605 is 506500005.

It is not a de Polignac number, because 500005605 - 2² = 500005601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500005601) 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 31 ways as a sum of consecutive naturals, for example, 34846 + ... + 47055.

It is an arithmetic number, because the mean of its divisors is an integer number (28010484).

Almost surely, 2^500005605 is an apocalyptic number.

500005605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

500005605 is a deficient number, since it is larger than the sum of its proper divisors (396329883).

500005605 is a wasteful number, since it uses less digits than its factorization.

500005605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81957.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 500005605 is about 22360.8051062568. The cubic root of 500005605 is about 793.7034917673.

The spelling of 500005605 in words is "five hundred million, five thousand, six hundred five".