57323009 has 2 divisors, whose sum is σ = 57323010. Its totient is φ = 57323008.

The previous prime is 57322973. The next prime is 57323011. The reversal of 57323009 is 90032375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30283009 + 27040000 = 5503^2 + 5200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57323009 is a prime.

Together with 57323011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57323029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28661504 + 28661505.

It is an arithmetic number, because the mean of its divisors is an integer number (28661505).

Almost surely, 2^57323009 is an apocalyptic number.

It is an amenable number.

57323009 is a deficient number, since it is larger than the sum of its proper divisors (1).

57323009 is an equidigital number, since it uses as much as digits as its factorization.

57323009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 57323009 is about 7571.1960085577. The cubic root of 57323009 is about 385.5757036087.

The spelling of 57323009 in words is "fifty-seven million, three hundred twenty-three thousand, nine".