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57223 is a prime number
BaseRepresentation
bin1101111110000111
32220111101
431332013
53312343
61120531
7325555
oct157607
986441
1057223
1139aa1
1229147
132007a
1416bd5
1511e4d
hexdf87

57223 has 2 divisors, whose sum is σ = 57224. Its totient is φ = 57222.

The previous prime is 57221. The next prime is 57241. The reversal of 57223 is 32275.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57223 - 21 = 57221 is a prime.

Together with 57221, it forms a pair of twin primes.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 57223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28611 + 28612.

It is an arithmetic number, because the mean of its divisors is an integer number (28612).

257223 is an apocalyptic number.

57223 is a deficient number, since it is larger than the sum of its proper divisors (1).

57223 is an equidigital number, since it uses as much as digits as its factorization.

57223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 19.

The square root of 57223 is about 239.2132939450. The cubic root of 57223 is about 38.5351340604.

Adding to 57223 its reverse (32275), we get a palindrome (89498).

It can be divided in two parts, 572 and 23, that added together give a palindrome (595).

The spelling of 57223 in words is "fifty-seven thousand, two hundred twenty-three".