505641 has 8 divisors (see below), whose sum is σ = 696064. Its totient is φ = 326160.

The previous prime is 505639. The next prime is 505643. The reversal of 505641 is 146505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (505639) and next prime (505643).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505641 - 2¹ = 505639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626 + ... + 2811.

It is an arithmetic number, because the mean of its divisors is an integer number (87008).

2⁵⁰⁵⁶⁴¹ is an apocalyptic number.

It is an amenable number.

505641 is a deficient number, since it is larger than the sum of its proper divisors (190423).

505641 is a wasteful number, since it uses less digits than its factorization.

505641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 505641 is about 711.0843831783. The cubic root of 505641 is about 79.6674213926.

The spelling of 505641 in words is "five hundred five thousand, six hundred forty-one".