54442481 has 2 divisors, whose sum is σ = 54442482. Its totient is φ = 54442480.

The previous prime is 54442477. The next prime is 54442499. The reversal of 54442481 is 18424445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38241856 + 16200625 = 6184^2 + 4025^2 .

It is a cyclic number.

It is not a de Polignac number, because 54442481 - 2² = 54442477 is a prime.

It is a super-2 number, since 2×54442481² = 5927967474870722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54442471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27221240 + 27221241.

It is an arithmetic number, because the mean of its divisors is an integer number (27221241).

Almost surely, 2^54442481 is an apocalyptic number.

It is an amenable number.

54442481 is a deficient number, since it is larger than the sum of its proper divisors (1).

54442481 is an equidigital number, since it uses as much as digits as its factorization.

54442481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20480, while the sum is 32.

The square root of 54442481 is about 7378.5148234587. The cubic root of 54442481 is about 379.0058988739.

The spelling of 54442481 in words is "fifty-four million, four hundred forty-two thousand, four hundred eighty-one".