220475 has 6 divisors (see below), whose sum is σ = 273420. Its totient is φ = 176360.

The previous prime is 220471. The next prime is 220511. The reversal of 220475 is 574022.

It is not a de Polignac number, because 220475 - 2² = 220471 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220475.

It is not an unprimeable number, because it can be changed into a prime (220471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4385 + ... + 4434.

It is an arithmetic number, because the mean of its divisors is an integer number (45570).

2²²⁰⁴⁷⁵ is an apocalyptic number.

220475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

220475 is a deficient number, since it is larger than the sum of its proper divisors (52945).

220475 is an equidigital number, since it uses as much as digits as its factorization.

220475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8829 (or 8824 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 220475 is about 469.5476546635. The cubic root of 220475 is about 60.4115228809.

Adding to 220475 its reverse (574022), we get a palindrome (794497).

The spelling of 220475 in words is "two hundred twenty thousand, four hundred seventy-five".