58021 has 4 divisors (see below), whose sum is σ = 61452. Its totient is φ = 54592.

The previous prime is 58013. The next prime is 58027. The reversal of 58021 is 12085.

It is a happy number.

58021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12085 = 5 ⋅2417.

It can be written as a sum of positive squares in 2 ways, for example, as 50625 + 7396 = 225^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 58021 - 2³ = 58013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57986 and 58004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (15363).

2⁵⁸⁰²¹ is an apocalyptic number.

It is an amenable number.

58021 is a deficient number, since it is larger than the sum of its proper divisors (3431).

58021 is a wasteful number, since it uses less digits than its factorization.

58021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 58021 is about 240.8754865070. The cubic root of 58021 is about 38.7134375902.

The spelling of 58021 in words is "fifty-eight thousand, twenty-one".