54523421 has 4 divisors (see below), whose sum is σ = 54889500. Its totient is φ = 54157344.

The previous prime is 54523373. The next prime is 54523453. The reversal of 54523421 is 12432545.

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: 12432545 = 5 ⋅2486509.

It can be written as a sum of positive squares in 2 ways, for example, as 29822521 + 24700900 = 5461^2 + 4970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54523421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54523121) 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, 182816 + ... + 183113.

It is an arithmetic number, because the mean of its divisors is an integer number (13722375).

Almost surely, 2^54523421 is an apocalyptic number.

It is an amenable number.

54523421 is a deficient number, since it is larger than the sum of its proper divisors (366079).

54523421 is a wasteful number, since it uses less digits than its factorization.

54523421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366078.

The product of its digits is 4800, while the sum is 26.

The square root of 54523421 is about 7383.9976300105. The cubic root of 54523421 is about 379.1936294047.

Adding to 54523421 its reverse (12432545), we get a palindrome (66955966).

The spelling of 54523421 in words is "fifty-four million, five hundred twenty-three thousand, four hundred twenty-one".