57066849 has 56 divisors (see below), whose sum is σ = 100101312. Its totient is φ = 31842720.

The previous prime is 57066847. The next prime is 57066853. The reversal of 57066849 is 94866075.

57066849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57066849 - 2¹ = 57066847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57066847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 270354 + ... + 270564.

Almost surely, 2^57066849 is an apocalyptic number.

It is an amenable number.

57066849 is a deficient number, since it is larger than the sum of its proper divisors (43034463).

57066849 is an equidigital number, since it uses as much as digits as its factorization.

57066849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 57066849 is about 7554.2603211698. The cubic root of 57066849 is about 385.0005037380. Note that the first 3 decimals are identical.

The spelling of 57066849 in words is "fifty-seven million, sixty-six thousand, eight hundred forty-nine".