48581 has 8 divisors (see below), whose sum is σ = 54264. Its totient is φ = 43200.

The previous prime is 48571. The next prime is 48589. The reversal of 48581 is 18584.

It can be written as a sum of positive squares in 4 ways, for example, as 21025 + 27556 = 145^2 + 166^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48581 is a prime.

It is a super-2 number, since 2×48581² = 4720227122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 48581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48589) 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, 431 + ... + 531.

It is an arithmetic number, because the mean of its divisors is an integer number (6783).

2⁴⁸⁵⁸¹ is an apocalyptic number.

It is an amenable number.

48581 is a deficient number, since it is larger than the sum of its proper divisors (5683).

48581 is a wasteful number, since it uses less digits than its factorization.

48581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151.

The product of its digits is 1280, while the sum is 26.

The square root of 48581 is about 220.4109797628. The cubic root of 48581 is about 36.4884557224.

The spelling of 48581 in words is "forty-eight thousand, five hundred eighty-one".