54958 has 4 divisors (see below), whose sum is σ = 82440. Its totient is φ = 27478.

The previous prime is 54949. The next prime is 54959. The reversal of 54958 is 85945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85945 = 5 ⋅17189.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13738 + ... + 13741.

It is an arithmetic number, because the mean of its divisors is an integer number (20610).

54958 is a Friedman number, since it can be written as 9^5-8^4+5, using all its digits and the basic arithmetic operations.

2⁵⁴⁹⁵⁸ is an apocalyptic number.

54958 is a deficient number, since it is larger than the sum of its proper divisors (27482).

54958 is a wasteful number, since it uses less digits than its factorization.

54958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27481.

The product of its digits is 7200, while the sum is 31.

The square root of 54958 is about 234.4312265890. The cubic root of 54958 is about 38.0198418999.

The spelling of 54958 in words is "fifty-four thousand, nine hundred fifty-eight".