485561 has 4 divisors (see below), whose sum is σ = 489972. Its totient is φ = 481152.

The previous prime is 485543. The next prime is 485567. The reversal of 485561 is 165584.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102400 + 383161 = 320^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 485561 - 2⁶ = 485497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (122493).

2⁴⁸⁵⁵⁶¹ is an apocalyptic number.

It is an amenable number.

485561 is a deficient number, since it is larger than the sum of its proper divisors (4411).

485561 is a wasteful number, since it uses less digits than its factorization.

485561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410.

The product of its digits is 4800, while the sum is 29.

The square root of 485561 is about 696.8220719811. The cubic root of 485561 is about 78.5985617427.

The spelling of 485561 in words is "four hundred eighty-five thousand, five hundred sixty-one".