54565481 has 2 divisors, whose sum is σ = 54565482. Its totient is φ = 54565480.

The previous prime is 54565477. The next prime is 54565493. The reversal of 54565481 is 18456545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 42025 = 7384^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 54565481 - 2² = 54565477 is a prime.

It is a super-2 number, since 2×54565481² = 5954783433522722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54565421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27282740 + 27282741.

It is an arithmetic number, because the mean of its divisors is an integer number (27282741).

Almost surely, 2^54565481 is an apocalyptic number.

It is an amenable number.

54565481 is a deficient number, since it is larger than the sum of its proper divisors (1).

54565481 is an equidigital number, since it uses as much as digits as its factorization.

54565481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96000, while the sum is 38.

The square root of 54565481 is about 7386.8451317190. The cubic root of 54565481 is about 379.2911091327.

The spelling of 54565481 in words is "fifty-four million, five hundred sixty-five thousand, four hundred eighty-one".