57163009 has 4 divisors (see below), whose sum is σ = 57805380. Its totient is φ = 56520640.

The previous prime is 57163003. The next prime is 57163019. The reversal of 57163009 is 90036175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11560000 + 45603009 = 3400^2 + 6753^2 .

It is a cyclic number.

It is not a de Polignac number, because 57163009 - 2¹³ = 57154817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57163003) 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 in 3 ways as a sum of consecutive naturals, for example, 321052 + ... + 321229.

It is an arithmetic number, because the mean of its divisors is an integer number (14451345).

Almost surely, 2^57163009 is an apocalyptic number.

It is an amenable number.

57163009 is a deficient number, since it is larger than the sum of its proper divisors (642371).

57163009 is an equidigital number, since it uses as much as digits as its factorization.

57163009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642370.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 57163009 is about 7560.6222627506. The cubic root of 57163009 is about 385.2166296453.

The spelling of 57163009 in words is "fifty-seven million, one hundred sixty-three thousand, nine".