57753809 has 2 divisors, whose sum is σ = 57753810. Its totient is φ = 57753808.

The previous prime is 57753793. The next prime is 57753823. The reversal of 57753809 is 90835775.

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., 56550400 + 1203409 = 7520^2 + 1097^2 .

It is a cyclic number.

It is not a de Polignac number, because 57753809 - 2⁴ = 57753793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57753809.

It is not a weakly prime, because it can be changed into another prime (57783809) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28876904 + 28876905.

It is an arithmetic number, because the mean of its divisors is an integer number (28876905).

Almost surely, 2^57753809 is an apocalyptic number.

It is an amenable number.

57753809 is a deficient number, since it is larger than the sum of its proper divisors (1).

57753809 is an equidigital number, since it uses as much as digits as its factorization.

57753809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 57753809 is about 7599.5926864537. The cubic root of 57753809 is about 386.5392005368.

The spelling of 57753809 in words is "fifty-seven million, seven hundred fifty-three thousand, eight hundred nine".