57550313 has 2 divisors, whose sum is σ = 57550314. Its totient is φ = 57550312.

The previous prime is 57550307. The next prime is 57550319. The reversal of 57550313 is 31305575.

It is a balanced prime because it is at equal distance from previous prime (57550307) and next prime (57550319).

It can be written as a sum of positive squares in only one way, i.e., 33028009 + 24522304 = 5747^2 + 4952^2 .

It is a cyclic number.

It is not a de Polignac number, because 57550313 - 2¹² = 57546217 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 (57550319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28775156 + 28775157.

It is an arithmetic number, because the mean of its divisors is an integer number (28775157).

Almost surely, 2^57550313 is an apocalyptic number.

It is an amenable number.

57550313 is a deficient number, since it is larger than the sum of its proper divisors (1).

57550313 is an equidigital number, since it uses as much as digits as its factorization.

57550313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 57550313 is about 7586.1922596254. The cubic root of 57550313 is about 386.0846749727.

Adding to 57550313 its reverse (31305575), we get a palindrome (88855888).

The spelling of 57550313 in words is "fifty-seven million, five hundred fifty thousand, three hundred thirteen".