57755809 has 8 divisors (see below), whose sum is σ = 59868288. Its totient is φ = 55680240.

The previous prime is 57755773. The next prime is 57755813. The reversal of 57755809 is 90855775.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57755809 - 2¹⁷ = 57624737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57755309) 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 7 ways as a sum of consecutive naturals, for example, 6022 + ... + 12319.

It is an arithmetic number, because the mean of its divisors is an integer number (7483536).

Almost surely, 2^57755809 is an apocalyptic number.

It is an amenable number.

57755809 is a deficient number, since it is larger than the sum of its proper divisors (2112479).

57755809 is a wasteful number, since it uses less digits than its factorization.

57755809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18455.

The product of its (nonzero) digits is 441000, while the sum is 46.

The square root of 57755809 is about 7599.7242713141. The cubic root of 57755809 is about 386.5436624040.

It can be divided in two parts, 57755 and 809, that added together give a square (58564 = 242²).

The spelling of 57755809 in words is "fifty-seven million, seven hundred fifty-five thousand, eight hundred nine".