57232313 has 4 divisors (see below), whose sum is σ = 60244560. Its totient is φ = 54220068.

The previous prime is 57232297. The next prime is 57232321. The reversal of 57232313 is 31323275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57232313 - 2⁴ = 57232297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57432313) 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, 1506095 + ... + 1506132.

It is an arithmetic number, because the mean of its divisors is an integer number (15061140).

Almost surely, 2^57232313 is an apocalyptic number.

It is an amenable number.

57232313 is a deficient number, since it is larger than the sum of its proper divisors (3012247).

57232313 is a wasteful number, since it uses less digits than its factorization.

57232313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012246.

The product of its digits is 3780, while the sum is 26.

The square root of 57232313 is about 7565.2040950658. The cubic root of 57232313 is about 385.3722446834.

Adding to 57232313 its reverse (31323275), we get a palindrome (88555588).

The spelling of 57232313 in words is "fifty-seven million, two hundred thirty-two thousand, three hundred thirteen".