57365789 has 4 divisors (see below), whose sum is σ = 61778556. Its totient is φ = 52953024.

The previous prime is 57365783. The next prime is 57365797. The reversal of 57365789 is 98756375.

It is a happy number.

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 22944100 + 34421689 = 4790^2 + 5867^2 .

It is a cyclic number.

It is not a de Polignac number, because 57365789 - 2¹⁶ = 57300253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57365783) 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, 2206364 + ... + 2206389.

It is an arithmetic number, because the mean of its divisors is an integer number (15444639).

Almost surely, 2^57365789 is an apocalyptic number.

It is an amenable number.

57365789 is a deficient number, since it is larger than the sum of its proper divisors (4412767).

57365789 is a wasteful number, since it uses less digits than its factorization.

57365789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412766.

The product of its digits is 1587600, while the sum is 50.

The square root of 57365789 is about 7574.0206627656. The cubic root of 57365789 is about 385.6715977776.

The spelling of 57365789 in words is "fifty-seven million, three hundred sixty-five thousand, seven hundred eighty-nine".