57064549 has 2 divisors, whose sum is σ = 57064550. Its totient is φ = 57064548.

The previous prime is 57064523. The next prime is 57064571. The reversal of 57064549 is 94546075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50268100 + 6796449 = 7090^2 + 2607^2 .

It is a cyclic number.

It is not a de Polignac number, because 57064549 - 2²¹ = 54967397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57064519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28532274 + 28532275.

It is an arithmetic number, because the mean of its divisors is an integer number (28532275).

Almost surely, 2^57064549 is an apocalyptic number.

It is an amenable number.

57064549 is a deficient number, since it is larger than the sum of its proper divisors (1).

57064549 is an equidigital number, since it uses as much as digits as its factorization.

57064549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 57064549 is about 7554.1080876567. The cubic root of 57064549 is about 384.9953313652.

The spelling of 57064549 in words is "fifty-seven million, sixty-four thousand, five hundred forty-nine".