220690573 has 4 divisors (see below), whose sum is σ = 220742620. Its totient is φ = 220638528.

The previous prime is 220690571. The next prime is 220690627. The reversal of 220690573 is 375096022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13704804 + 206985769 = 3702^2 + 14387^2 .

It is a cyclic number.

It is not a de Polignac number, because 220690573 - 2¹ = 220690571 is a prime.

It is a super-2 number, since 2×220690573² = 97408658022136658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220690571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19038 + ... + 28351.

It is an arithmetic number, because the mean of its divisors is an integer number (55185655).

Almost surely, 2^220690573 is an apocalyptic number.

It is an amenable number.

220690573 is a deficient number, since it is larger than the sum of its proper divisors (52047).

220690573 is an equidigital number, since it uses as much as digits as its factorization.

220690573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52046.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 220690573 is about 14855.6579457121. The cubic root of 220690573 is about 604.3120591526.

The spelling of 220690573 in words is "two hundred twenty million, six hundred ninety thousand, five hundred seventy-three".