57042223 has 12 divisors (see below), whose sum is σ = 66574632. Its totient is φ = 48731760.

The previous prime is 57042211. The next prime is 57042229. The reversal of 57042223 is 32224075.

It is a de Polignac number, because none of the positive numbers 2^k-57042223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57042229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14461 + ... + 17977.

It is an arithmetic number, because the mean of its divisors is an integer number (5547886).

Almost surely, 2^57042223 is an apocalyptic number.

57042223 is a deficient number, since it is larger than the sum of its proper divisors (9532409).

57042223 is a wasteful number, since it uses less digits than its factorization.

57042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862 (or 3855 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 57042223 is about 7552.6302041077. The cubic root of 57042223 is about 384.9451161433.

Adding to 57042223 its reverse (32224075), we get a palindrome (89266298).

The spelling of 57042223 in words is "fifty-seven million, forty-two thousand, two hundred twenty-three".