59681 has 4 divisors (see below), whose sum is σ = 61332. Its totient is φ = 58032.

The previous prime is 59671. The next prime is 59693. The reversal of 59681 is 18695.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18695 = 5 ⋅3739.

It can be written as a sum of positive squares in 2 ways, for example, as 46225 + 13456 = 215^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 59681 - 2⁶ = 59617 is a prime.

It is a super-2 number, since 2×59681² = 7123643522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 7.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (59611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770 + ... + 843.

It is an arithmetic number, because the mean of its divisors is an integer number (15333).

2⁵⁹⁶⁸¹ is an apocalyptic number.

It is an amenable number.

59681 is a deficient number, since it is larger than the sum of its proper divisors (1651).

59681 is a wasteful number, since it uses less digits than its factorization.

59681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650.

The product of its digits is 2160, while the sum is 29.

The square root of 59681 is about 244.2969504517. The cubic root of 59681 is about 39.0791729359.

The spelling of 59681 in words is "fifty-nine thousand, six hundred eighty-one".