54072531 has 6 divisors (see below), whose sum is σ = 78104780. Its totient is φ = 36048348.

The previous prime is 54072521. The next prime is 54072541. The reversal of 54072531 is 13527045.

It is a happy number.

54072531 is a `hidden beast` number, since 5 + 407 + 253 + 1 = 666.

54072531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54072521) and next prime (54072541).

It is not a de Polignac number, because 54072531 - 2⁶ = 54072467 is a prime.

It is a super-2 number, since 2×54072531² = 5847677217491922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54072495 and 54072504.

It is not an unprimeable number, because it can be changed into a prime (54072521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3004021 + ... + 3004038.

Almost surely, 2^54072531 is an apocalyptic number.

54072531 is a deficient number, since it is larger than the sum of its proper divisors (24032249).

54072531 is a wasteful number, since it uses less digits than its factorization.

54072531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008065 (or 6008062 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 54072531 is about 7353.4026817522. The cubic root of 54072531 is about 378.1454676533.

Adding to 54072531 its reverse (13527045), we get a palindrome (67599576).

The spelling of 54072531 in words is "fifty-four million, seventy-two thousand, five hundred thirty-one".