54424421 has 4 divisors (see below), whose sum is σ = 54458700. Its totient is φ = 54390144.

The previous prime is 54424397. The next prime is 54424423. The reversal of 54424421 is 12442445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12442445 = 5 ⋅2488489.

It can be written as a sum of positive squares in 2 ways, for example, as 32615521 + 21808900 = 5711^2 + 4670^2 .

It is a cyclic number.

It is not a de Polignac number, because 54424421 - 2¹⁴ = 54408037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54424423) 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, 14636 + ... + 17973.

It is an arithmetic number, because the mean of its divisors is an integer number (13614675).

Almost surely, 2^54424421 is an apocalyptic number.

It is an amenable number.

54424421 is a deficient number, since it is larger than the sum of its proper divisors (34279).

54424421 is a wasteful number, since it uses less digits than its factorization.

54424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34278.

The product of its digits is 5120, while the sum is 26.

The square root of 54424421 is about 7377.2908984261. The cubic root of 54424421 is about 378.9639855039.

Adding to 54424421 its reverse (12442445), we get a palindrome (66866866).

It can be divided in two parts, 54424 and 421, that added together give a palindrome (54845).

The spelling of 54424421 in words is "fifty-four million, four hundred twenty-four thousand, four hundred twenty-one".