220573 has 2 divisors, whose sum is σ = 220574. Its totient is φ = 220572.

The previous prime is 220559. The next prime is 220579. The reversal of 220573 is 375022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131769 + 88804 = 363^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 220573 - 2¹⁷ = 89501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110286 + 110287.

It is an arithmetic number, because the mean of its divisors is an integer number (110287).

2²²⁰⁵⁷³ is an apocalyptic number.

It is an amenable number.

220573 is a deficient number, since it is larger than the sum of its proper divisors (1).

220573 is an equidigital number, since it uses as much as digits as its factorization.

220573 is an evil number, because the sum of its binary digits is even.

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

The square root of 220573 is about 469.6519988247. The cubic root of 220573 is about 60.4204724251.

Adding to 220573 its reverse (375022), we get a palindrome (595595).

Subtracting 220573 from its reverse (375022), we obtain a square (154449 = 393²).

It can be divided in two parts, 2205 and 73, that added together give a triangular number (2278 = T₆₇).

The spelling of 220573 in words is "two hundred twenty thousand, five hundred seventy-three".