57215003 has 2 divisors, whose sum is σ = 57215004. Its totient is φ = 57215002.

The previous prime is 57214973. The next prime is 57215009. The reversal of 57215003 is 30051275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57215003 - 2⁶ = 57214939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57215003.

It is not a weakly prime, because it can be changed into another prime (57215009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28607501 + 28607502.

It is an arithmetic number, because the mean of its divisors is an integer number (28607502).

Almost surely, 2^57215003 is an apocalyptic number.

57215003 is a deficient number, since it is larger than the sum of its proper divisors (1).

57215003 is an equidigital number, since it uses as much as digits as its factorization.

57215003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 57215003 is about 7564.0599548126. The cubic root of 57215003 is about 385.3333886255. Note that the first 4 decimals are identical.

Adding to 57215003 its reverse (30051275), we get a palindrome (87266278).

The spelling of 57215003 in words is "fifty-seven million, two hundred fifteen thousand, three".