57550303 has 2 divisors, whose sum is σ = 57550304. Its totient is φ = 57550302.

The previous prime is 57550289. The next prime is 57550307. The reversal of 57550303 is 30305575.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57550303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57550307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28775151 + 28775152.

It is an arithmetic number, because the mean of its divisors is an integer number (28775152).

Almost surely, 2^57550303 is an apocalyptic number.

57550303 is a deficient number, since it is larger than the sum of its proper divisors (1).

57550303 is an equidigital number, since it uses as much as digits as its factorization.

57550303 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 28.

The square root of 57550303 is about 7586.1916005332. The cubic root of 57550303 is about 386.0846526106.

Adding to 57550303 its reverse (30305575), we get a palindrome (87855878).

The spelling of 57550303 in words is "fifty-seven million, five hundred fifty thousand, three hundred three".