485809529 has 4 divisors (see below), whose sum is σ = 487467876. Its totient is φ = 484151184.

The previous prime is 485809517. The next prime is 485809547. The reversal of 485809529 is 925908584.

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 250493929 + 235315600 = 15827^2 + 15340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485809529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485809549) 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 3 ways as a sum of consecutive naturals, for example, 828734 + ... + 829319.

It is an arithmetic number, because the mean of its divisors is an integer number (121866969).

Almost surely, 2^485809529 is an apocalyptic number.

It is an amenable number.

485809529 is a deficient number, since it is larger than the sum of its proper divisors (1658347).

485809529 is a wasteful number, since it uses less digits than its factorization.

485809529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658346.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The square root of 485809529 is about 22041.0872916923. The cubic root of 485809529 is about 786.1196938882.

It can be divided in two parts, 485809 and 529, that multiplied together give a square (256992961 = 16031²).

The spelling of 485809529 in words is "four hundred eighty-five million, eight hundred nine thousand, five hundred twenty-nine".