57117223 has 4 divisors (see below), whose sum is σ = 58510368. Its totient is φ = 55724080.

The previous prime is 57117187. The next prime is 57117227. The reversal of 57117223 is 32271175.

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 57117223 - 2⁹ = 57116711 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 57117191 and 57117200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57117227) 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, 696511 + ... + 696592.

It is an arithmetic number, because the mean of its divisors is an integer number (14627592).

Almost surely, 2^57117223 is an apocalyptic number.

57117223 is a deficient number, since it is larger than the sum of its proper divisors (1393145).

57117223 is a wasteful number, since it uses less digits than its factorization.

57117223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393144.

The product of its digits is 2940, while the sum is 28.

The square root of 57117223 is about 7557.5937308114. The cubic root of 57117223 is about 385.1137528603.

Adding to 57117223 its reverse (32271175), we get a palindrome (89388398).

The spelling of 57117223 in words is "fifty-seven million, one hundred seventeen thousand, two hundred twenty-three".