54245281 has 2 divisors, whose sum is σ = 54245282. Its totient is φ = 54245280.

The previous prime is 54245251. The next prime is 54245297. The reversal of 54245281 is 18254245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51552400 + 2692881 = 7180^2 + 1641^2 .

It is a cyclic number.

It is not a de Polignac number, because 54245281 - 2⁷ = 54245153 is a prime.

It is a super-2 number, since 2×54245281² = 5885101021537922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54245221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27122640 + 27122641.

It is an arithmetic number, because the mean of its divisors is an integer number (27122641).

Almost surely, 2^54245281 is an apocalyptic number.

It is an amenable number.

54245281 is a deficient number, since it is larger than the sum of its proper divisors (1).

54245281 is an equidigital number, since it uses as much as digits as its factorization.

54245281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12800, while the sum is 31.

The square root of 54245281 is about 7365.1395777677. The cubic root of 54245281 is about 378.5477371331.

The spelling of 54245281 in words is "fifty-four million, two hundred forty-five thousand, two hundred eighty-one".