57117233 has 4 divisors (see below), whose sum is σ = 58660980. Its totient is φ = 55573488.

The previous prime is 57117227. The next prime is 57117293. The reversal of 57117233 is 33271175.

57117233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 44528929 + 12588304 = 6673^2 + 3548^2 .

It is a cyclic number.

It is not a de Polignac number, because 57117233 - 2¹² = 57113137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 57117196 and 57117205.

It is not an unprimeable number, because it can be changed into a prime (57117293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771818 + ... + 771891.

It is an arithmetic number, because the mean of its divisors is an integer number (14665245).

Almost surely, 2^57117233 is an apocalyptic number.

It is an amenable number.

57117233 is a deficient number, since it is larger than the sum of its proper divisors (1543747).

57117233 is a wasteful number, since it uses less digits than its factorization.

57117233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543746.

The product of its digits is 4410, while the sum is 29.

The square root of 57117233 is about 7557.5943923976. The cubic root of 57117233 is about 385.1137753354.

The spelling of 57117233 in words is "fifty-seven million, one hundred seventeen thousand, two hundred thirty-three".