220425566 has 8 divisors (see below), whose sum is σ = 330782400. Its totient is φ = 110164768.

The previous prime is 220425551. The next prime is 220425599. The reversal of 220425566 is 665524022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17966 + ... + 27633.

It is an arithmetic number, because the mean of its divisors is an integer number (41347800).

Almost surely, 2^220425566 is an apocalyptic number.

220425566 is a deficient number, since it is larger than the sum of its proper divisors (110356834).

220425566 is a wasteful number, since it uses less digits than its factorization.

220425566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48018.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 220425566 is about 14846.7358702174. The cubic root of 220425566 is about 604.0700746878.

Adding to 220425566 its reverse (665524022), we get a palindrome (885949588).

The spelling of 220425566 in words is "two hundred twenty million, four hundred twenty-five thousand, five hundred sixty-six".