57284617 has 4 divisors (see below), whose sum is σ = 61691140. Its totient is φ = 52878096.

The previous prime is 57284603. The next prime is 57284627. The reversal of 57284617 is 71648275.

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 4562496 + 52722121 = 2136^2 + 7261^2 .

It is a cyclic number.

It is not a de Polignac number, because 57284617 - 2⁷ = 57284489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57284617.

It is not an unprimeable number, because it can be changed into a prime (57284627) 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, 2203242 + ... + 2203267.

It is an arithmetic number, because the mean of its divisors is an integer number (15422785).

Almost surely, 2^57284617 is an apocalyptic number.

It is an amenable number.

57284617 is a deficient number, since it is larger than the sum of its proper divisors (4406523).

57284617 is a wasteful number, since it uses less digits than its factorization.

57284617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406522.

The product of its digits is 94080, while the sum is 40.

The square root of 57284617 is about 7568.6601852640. The cubic root of 57284617 is about 385.4896047996.

The spelling of 57284617 in words is "fifty-seven million, two hundred eighty-four thousand, six hundred seventeen".