506261489 has 8 divisors (see below), whose sum is σ = 518448480. Its totient is φ = 494093376.

The previous prime is 506261461. The next prime is 506261507. The reversal of 506261489 is 984162605.

It is a happy number.

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 506261489 - 2⁸ = 506261233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506261429) 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, 60074 + ... + 67980.

It is an arithmetic number, because the mean of its divisors is an integer number (64806060).

Almost surely, 2^506261489 is an apocalyptic number.

It is an amenable number.

506261489 is a deficient number, since it is larger than the sum of its proper divisors (12186991).

506261489 is a wasteful number, since it uses less digits than its factorization.

506261489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 506261489 is about 22500.2553096626. The cubic root of 506261489 is about 796.9999559200. Note that the first 4 decimals are identical.

The spelling of 506261489 in words is "five hundred six million, two hundred sixty-one thousand, four hundred eighty-nine".