57255223 has 2 divisors, whose sum is σ = 57255224. Its totient is φ = 57255222.

The previous prime is 57255221. The next prime is 57255239. The reversal of 57255223 is 32255275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57255223 - 2¹ = 57255221 is a prime.

Together with 57255221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57255221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28627611 + 28627612.

It is an arithmetic number, because the mean of its divisors is an integer number (28627612).

Almost surely, 2^57255223 is an apocalyptic number.

57255223 is a deficient number, since it is larger than the sum of its proper divisors (1).

57255223 is an equidigital number, since it uses as much as digits as its factorization.

57255223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 31.

The square root of 57255223 is about 7566.7181128941. The cubic root of 57255223 is about 385.4236591138.

The spelling of 57255223 in words is "fifty-seven million, two hundred fifty-five thousand, two hundred twenty-three".