57430561 has 2 divisors, whose sum is σ = 57430562. Its totient is φ = 57430560.

The previous prime is 57430547. The next prime is 57430567. The reversal of 57430561 is 16503475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50140561 + 7290000 = 7081^2 + 2700^2 .

It is a cyclic number.

It is not a de Polignac number, because 57430561 - 2⁷ = 57430433 is a prime.

It is not a weakly prime, because it can be changed into another prime (57430567) 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, 28715280 + 28715281.

It is an arithmetic number, because the mean of its divisors is an integer number (28715281).

Almost surely, 2^57430561 is an apocalyptic number.

It is an amenable number.

57430561 is a deficient number, since it is larger than the sum of its proper divisors (1).

57430561 is an equidigital number, since it uses as much as digits as its factorization.

57430561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 57430561 is about 7578.2953888061. The cubic root of 57430561 is about 385.8166977585.

The spelling of 57430561 in words is "fifty-seven million, four hundred thirty thousand, five hundred sixty-one".