48569 has 4 divisors (see below), whose sum is σ = 51444. Its totient is φ = 45696.

The previous prime is 48563. The next prime is 48571. The reversal of 48569 is 96584.

48569 = 20² + 21² + ... + 53².

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 35344 + 13225 = 188^2 + 115^2 .

It is not a de Polignac number, because 48569 - 2⁸ = 48313 is a prime.

It is a super-2 number, since 2×48569² = 4717895522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48563) 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, 1412 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (12861).

2⁴⁸⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

48569 is a deficient number, since it is larger than the sum of its proper divisors (2875).

48569 is a wasteful number, since it uses less digits than its factorization.

48569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874.

The product of its digits is 8640, while the sum is 32.

The square root of 48569 is about 220.3837562072. The cubic root of 48569 is about 36.4854511354.

The spelling of 48569 in words is "forty-eight thousand, five hundred sixty-nine".