220520273 has 2 divisors, whose sum is σ = 220520274. Its totient is φ = 220520272.

The previous prime is 220520257. The next prime is 220520299. The reversal of 220520273 is 372025022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123832384 + 96687889 = 11128^2 + 9833^2 .

It is a cyclic number.

It is not a de Polignac number, because 220520273 - 2⁴ = 220520257 is a prime.

It is not a weakly prime, because it can be changed into another prime (220520203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110260136 + 110260137.

It is an arithmetic number, because the mean of its divisors is an integer number (110260137).

Almost surely, 2^220520273 is an apocalyptic number.

It is an amenable number.

220520273 is a deficient number, since it is larger than the sum of its proper divisors (1).

220520273 is an equidigital number, since it uses as much as digits as its factorization.

220520273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 220520273 is about 14849.9250166457. The cubic root of 220520273 is about 604.1565762585.

Adding to 220520273 its reverse (372025022), we get a palindrome (592545295).

The spelling of 220520273 in words is "two hundred twenty million, five hundred twenty thousand, two hundred seventy-three".