54478481 has 2 divisors, whose sum is σ = 54478482. Its totient is φ = 54478480.

The previous prime is 54478477. The next prime is 54478483. The reversal of 54478481 is 18487445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31820881 + 22657600 = 5641^2 + 4760^2 .

It is a cyclic number.

It is not a de Polignac number, because 54478481 - 2² = 54478477 is a prime.

It is a super-2 number, since 2×54478481² = 5935809784134722, which contains 22 as substring.

Together with 54478483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54478483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27239240 + 27239241.

It is an arithmetic number, because the mean of its divisors is an integer number (27239241).

Almost surely, 2^54478481 is an apocalyptic number.

It is an amenable number.

54478481 is a deficient number, since it is larger than the sum of its proper divisors (1).

54478481 is an equidigital number, since it uses as much as digits as its factorization.

54478481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 143360, while the sum is 41.

The square root of 54478481 is about 7380.9539356373. The cubic root of 54478481 is about 379.0894194740.

The spelling of 54478481 in words is "fifty-four million, four hundred seventy-eight thousand, four hundred eighty-one".