57448057 has 2 divisors, whose sum is σ = 57448058. Its totient is φ = 57448056.

The previous prime is 57448037. The next prime is 57448067. The reversal of 57448057 is 75084475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29822521 + 27625536 = 5461^2 + 5256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57448057 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (57448037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28724028 + 28724029.

It is an arithmetic number, because the mean of its divisors is an integer number (28724029).

Almost surely, 2^57448057 is an apocalyptic number.

It is an amenable number.

57448057 is a deficient number, since it is larger than the sum of its proper divisors (1).

57448057 is an equidigital number, since it uses as much as digits as its factorization.

57448057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 57448057 is about 7579.4496502055. The cubic root of 57448057 is about 385.8558729727.

The spelling of 57448057 in words is "fifty-seven million, four hundred forty-eight thousand, fifty-seven".