57304889 has 2 divisors, whose sum is σ = 57304890. Its totient is φ = 57304888.

The previous prime is 57304883. The next prime is 57304963. The reversal of 57304889 is 98840375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45333289 + 11971600 = 6733^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 57304889 - 2¹⁶ = 57239353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57304883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28652444 + 28652445.

It is an arithmetic number, because the mean of its divisors is an integer number (28652445).

Almost surely, 2^57304889 is an apocalyptic number.

It is an amenable number.

57304889 is a deficient number, since it is larger than the sum of its proper divisors (1).

57304889 is an equidigital number, since it uses as much as digits as its factorization.

57304889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 57304889 is about 7569.9992734478. Note that the first 3 decimals coincide. The cubic root of 57304889 is about 385.5350720591.

The spelling of 57304889 in words is "fifty-seven million, three hundred four thousand, eight hundred eighty-nine".