57448481 has 2 divisors, whose sum is σ = 57448482. Its totient is φ = 57448480.

The previous prime is 57448471. The next prime is 57448493. The reversal of 57448481 is 18484475.

57448481 = 5359² + 5360².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28729600 + 28718881 = 5360^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 57448481 - 2¹⁴ = 57432097 is a prime.

It is a super-2 number, since 2×57448481² = 6600655938414722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57448471) 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, 28724240 + 28724241.

It is an arithmetic number, because the mean of its divisors is an integer number (28724241).

Almost surely, 2^57448481 is an apocalyptic number.

57448481 is the 5360-th centered square number.

It is an amenable number.

57448481 is a deficient number, since it is larger than the sum of its proper divisors (1).

57448481 is an equidigital number, since it uses as much as digits as its factorization.

57448481 is an odious number, because the sum of its binary digits is odd.

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

The square root of 57448481 is about 7579.4776205224. The cubic root of 57448481 is about 385.8568222505.

The spelling of 57448481 in words is "fifty-seven million, four hundred forty-eight thousand, four hundred eighty-one".