57515182009 has 2 divisors, whose sum is σ = 57515182010. Its totient is φ = 57515182008.

The previous prime is 57515182007. The next prime is 57515182027. The reversal of 57515182009 is 90028151575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29445530409 + 28069651600 = 171597^2 + 167540^2 .

It is a cyclic number.

It is not a de Polignac number, because 57515182009 - 2¹ = 57515182007 is a prime.

Together with 57515182007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57515182007) 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, 28757591004 + 28757591005.

It is an arithmetic number, because the mean of its divisors is an integer number (28757591005).

Almost surely, 2^57515182009 is an apocalyptic number.

It is an amenable number.

57515182009 is a deficient number, since it is larger than the sum of its proper divisors (1).

57515182009 is an equidigital number, since it uses as much as digits as its factorization.

57515182009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 43.

The spelling of 57515182009 in words is "fifty-seven billion, five hundred fifteen million, one hundred eighty-two thousand, nine".