57666845 has 8 divisors (see below), whose sum is σ = 69245880. Its totient is φ = 46103040.

The previous prime is 57666841. The next prime is 57666857. The reversal of 57666845 is 54866675.

It can be written as a sum of positive squares in 4 ways, for example, as 9821956 + 47844889 = 3134^2 + 6917^2 .

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

It is not a de Polignac number, because 57666845 - 2² = 57666841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57666845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57666841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7685 + ... + 13205.

It is an arithmetic number, because the mean of its divisors is an integer number (8655735).

Almost surely, 2^57666845 is an apocalyptic number.

It is an amenable number.

57666845 is a deficient number, since it is larger than the sum of its proper divisors (11579035).

57666845 is a wasteful number, since it uses less digits than its factorization.

57666845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7615.

The product of its digits is 1209600, while the sum is 47.

The square root of 57666845 is about 7593.8689085340. The cubic root of 57666845 is about 386.3450899266.

The spelling of 57666845 in words is "fifty-seven million, six hundred sixty-six thousand, eight hundred forty-five".