57321067 has 4 divisors (see below), whose sum is σ = 57340656. Its totient is φ = 57301480.

The previous prime is 57321049. The next prime is 57321079. The reversal of 57321067 is 76012375.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57321067 - 2¹⁵ = 57288299 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57321007) 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, 4423 + ... + 11584.

It is an arithmetic number, because the mean of its divisors is an integer number (14335164).

Almost surely, 2^57321067 is an apocalyptic number.

57321067 is a deficient number, since it is larger than the sum of its proper divisors (19589).

57321067 is a wasteful number, since it uses less digits than its factorization.

57321067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19588.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 57321067 is about 7571.0677582492. The cubic root of 57321067 is about 385.5713493567.

The spelling of 57321067 in words is "fifty-seven million, three hundred twenty-one thousand, sixty-seven".