57066293 has 4 divisors (see below), whose sum is σ = 58001868. Its totient is φ = 56130720.

The previous prime is 57066259. The next prime is 57066337. The reversal of 57066293 is 39266075.

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 4169764 + 52896529 = 2042^2 + 7273^2 .

It is a cyclic number.

It is not a de Polignac number, because 57066293 - 2¹² = 57062197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57060293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467696 + ... + 467817.

It is an arithmetic number, because the mean of its divisors is an integer number (14500467).

Almost surely, 2^57066293 is an apocalyptic number.

It is an amenable number.

57066293 is a deficient number, since it is larger than the sum of its proper divisors (935575).

57066293 is an equidigital number, since it uses as much as digits as its factorization.

57066293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935574.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 57066293 is about 7554.2235206539. The cubic root of 57066293 is about 384.9992533859. Note that the first 3 decimals are identical.

The spelling of 57066293 in words is "fifty-seven million, sixty-six thousand, two hundred ninety-three".