57448537 has 2 divisors, whose sum is σ = 57448538. Its totient is φ = 57448536.

The previous prime is 57448529. The next prime is 57448579. The reversal of 57448537 is 73584475.

57448537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30294016 + 27154521 = 5504^2 + 5211^2 .

It is a cyclic number.

It is not a de Polignac number, because 57448537 - 2³ = 57448529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57448493 and 57448502.

It is not a weakly prime, because it can be changed into another prime (57448597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28724268 + 28724269.

It is an arithmetic number, because the mean of its divisors is an integer number (28724269).

Almost surely, 2^57448537 is an apocalyptic number.

It is an amenable number.

57448537 is a deficient number, since it is larger than the sum of its proper divisors (1).

57448537 is an equidigital number, since it uses as much as digits as its factorization.

57448537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 43.

The square root of 57448537 is about 7579.4813147075. The cubic root of 57448537 is about 385.8569476264.

The spelling of 57448537 in words is "fifty-seven million, four hundred forty-eight thousand, five hundred thirty-seven".