57338321 has 2 divisors, whose sum is σ = 57338322. Its totient is φ = 57338320.

The previous prime is 57338317. The next prime is 57338327. The reversal of 57338321 is 12383375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36772096 + 20566225 = 6064^2 + 4535^2 .

It is a cyclic number.

It is not a de Polignac number, because 57338321 - 2² = 57338317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57338327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28669160 + 28669161.

It is an arithmetic number, because the mean of its divisors is an integer number (28669161).

Almost surely, 2^57338321 is an apocalyptic number.

It is an amenable number.

57338321 is a deficient number, since it is larger than the sum of its proper divisors (1).

57338321 is an equidigital number, since it uses as much as digits as its factorization.

57338321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 57338321 is about 7572.2071419105. The cubic root of 57338321 is about 385.6100319390.

The spelling of 57338321 in words is "fifty-seven million, three hundred thirty-eight thousand, three hundred twenty-one".