57045223 has 2 divisors, whose sum is σ = 57045224. Its totient is φ = 57045222.

The previous prime is 57045199. The next prime is 57045269. The reversal of 57045223 is 32254075.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57045223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57045191 and 57045200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57045323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28522611 + 28522612.

It is an arithmetic number, because the mean of its divisors is an integer number (28522612).

Almost surely, 2^57045223 is an apocalyptic number.

57045223 is a deficient number, since it is larger than the sum of its proper divisors (1).

57045223 is an equidigital number, since it uses as much as digits as its factorization.

57045223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 57045223 is about 7552.8288078044. The cubic root of 57045223 is about 384.9518644492.

Adding to 57045223 its reverse (32254075), we get a palindrome (89299298).

The spelling of 57045223 in words is "fifty-seven million, forty-five thousand, two hundred twenty-three".