506005501 has 8 divisors (see below), whose sum is σ = 508874040. Its totient is φ = 503144448.

The previous prime is 506005483. The next prime is 506005523. The reversal of 506005501 is 105500605.

It can be written as a sum of positive squares in 4 ways, for example, as 52272900 + 453732601 = 7230^2 + 21301^2 .

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-506005501 is a prime.

It is a super-2 number, since 2×506005501² = 512083134084522002, which contains 22 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 (506005531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180825 + ... + 183601.

It is an arithmetic number, because the mean of its divisors is an integer number (63609255).

Almost surely, 2^506005501 is an apocalyptic number.

It is an amenable number.

506005501 is a deficient number, since it is larger than the sum of its proper divisors (2868539).

506005501 is a wasteful number, since it uses less digits than its factorization.

506005501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 506005501 is about 22494.5660327111. The cubic root of 506005501 is about 796.8656005678.

The spelling of 506005501 in words is "five hundred six million, five thousand, five hundred one".