57613243 has 4 divisors (see below), whose sum is σ = 57654720. Its totient is φ = 57571768.

The previous prime is 57613223. The next prime is 57613261. The reversal of 57613243 is 34231675.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57613243 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 (57613223) 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, 18580 + ... + 21457.

It is an arithmetic number, because the mean of its divisors is an integer number (14413680).

Almost surely, 2^57613243 is an apocalyptic number.

57613243 is a deficient number, since it is larger than the sum of its proper divisors (41477).

57613243 is a wasteful number, since it uses less digits than its factorization.

57613243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41476.

The product of its digits is 15120, while the sum is 31.

The square root of 57613243 is about 7590.3387934927. The cubic root of 57613243 is about 386.2253487408.

The spelling of 57613243 in words is "fifty-seven million, six hundred thirteen thousand, two hundred forty-three".