57488697209 has 2 divisors, whose sum is σ = 57488697210. Its totient is φ = 57488697208.

The previous prime is 57488697181. The next prime is 57488697223. The reversal of 57488697209 is 90279688475.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40110075625 + 17378621584 = 200275^2 + 131828^2 .

It is a cyclic number.

It is not a de Polignac number, because 57488697209 - 2³² = 53193729913 is a prime.

It is not a weakly prime, because it can be changed into another prime (57488697109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28744348604 + 28744348605.

It is an arithmetic number, because the mean of its divisors is an integer number (28744348605).

Almost surely, 2^57488697209 is an apocalyptic number.

It is an amenable number.

57488697209 is a deficient number, since it is larger than the sum of its proper divisors (1).

57488697209 is an equidigital number, since it uses as much as digits as its factorization.

57488697209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 57488697209 in words is "fifty-seven billion, four hundred eighty-eight million, six hundred ninety-seven thousand, two hundred nine".