57665047 has 8 divisors (see below), whose sum is σ = 62968320. Its totient is φ = 52371960.

The previous prime is 57665017. The next prime is 57665051. The reversal of 57665047 is 74056675.

It is a happy number.

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 57665047 - 2¹⁵ = 57632279 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 (57665017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14008 + ... + 17650.

It is an arithmetic number, because the mean of its divisors is an integer number (7871040).

Almost surely, 2^57665047 is an apocalyptic number.

57665047 is a deficient number, since it is larger than the sum of its proper divisors (5303273).

57665047 is a wasteful number, since it uses less digits than its factorization.

57665047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 57665047 is about 7593.7505226337. The cubic root of 57665047 is about 386.3410745882.

The spelling of 57665047 in words is "fifty-seven million, six hundred sixty-five thousand, forty-seven".