54242231 has 4 divisors (see below), whose sum is σ = 54292512. Its totient is φ = 54191952.

The previous prime is 54242213. The next prime is 54242239. The reversal of 54242231 is 13224245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13224245 = 5 ⋅2644849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54242231 is a prime.

It is a super-2 number, since 2×54242231² = 5884439247714722, 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 = 54242197 and 54242206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54242239) 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, 23486 + ... + 25691.

It is an arithmetic number, because the mean of its divisors is an integer number (13573128).

Almost surely, 2^54242231 is an apocalyptic number.

54242231 is a deficient number, since it is larger than the sum of its proper divisors (50281).

54242231 is a wasteful number, since it uses less digits than its factorization.

54242231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50280.

The product of its digits is 1920, while the sum is 23.

The square root of 54242231 is about 7364.9325183602. The cubic root of 54242231 is about 378.5406422472.

Adding to 54242231 its reverse (13224245), we get a palindrome (67466476).

The spelling of 54242231 in words is "fifty-four million, two hundred forty-two thousand, two hundred thirty-one".