220506353 has 2 divisors, whose sum is σ = 220506354. Its totient is φ = 220506352.

The previous prime is 220506329. The next prime is 220506361. The reversal of 220506353 is 353605022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116812864 + 103693489 = 10808^2 + 10183^2 .

It is a cyclic number.

It is not a de Polignac number, because 220506353 - 2²² = 216312049 is a prime.

It is not a weakly prime, because it can be changed into another prime (220506373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110253176 + 110253177.

It is an arithmetic number, because the mean of its divisors is an integer number (110253177).

Almost surely, 2^220506353 is an apocalyptic number.

It is an amenable number.

220506353 is a deficient number, since it is larger than the sum of its proper divisors (1).

220506353 is an equidigital number, since it uses as much as digits as its factorization.

220506353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 220506353 is about 14849.4563200139. The cubic root of 220506353 is about 604.1438638422.

The spelling of 220506353 in words is "two hundred twenty million, five hundred six thousand, three hundred fifty-three".