54531 has 12 divisors (see below), whose sum is σ = 80808. Its totient is φ = 35424.

The previous prime is 54521. The next prime is 54539. The reversal of 54531 is 13545.

It is not a de Polignac number, because 54531 - 2⁵ = 54499 is a prime.

It is a super-2 number, since 2×54531² = 5947259922, which contains 22 as substring.

It is a plaindrome in base 15.

It is a nialpdrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (54539) 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 11 ways as a sum of consecutive naturals, for example, 616 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (6734).

2⁵⁴⁵³¹ is an apocalyptic number.

54531 is a deficient number, since it is larger than the sum of its proper divisors (26277).

54531 is a wasteful number, since it uses less digits than its factorization.

54531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 159 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 54531 is about 233.5187358650. The cubic root of 54531 is about 37.9211198462.

It can be divided in two parts, 545 and 31, that added together give a square (576 = 24²).

The spelling of 54531 in words is "fifty-four thousand, five hundred thirty-one".