220425 has 12 divisors (see below), whose sum is σ = 364560. Its totient is φ = 117520.

The previous prime is 220421. The next prime is 220447. The reversal of 220425 is 524022.

220425 is digitally balanced in base 2 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220425 - 2² = 220421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a d-powerful number, because it can be written as 2¹² + 2¹⁶ + 4⁶ + 0 + 2¹⁷ + 5⁶ .

220425 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220425.

It is not an unprimeable number, because it can be changed into a prime (220421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1395 + ... + 1544.

It is an arithmetic number, because the mean of its divisors is an integer number (30380).

2²²⁰⁴²⁵ is an apocalyptic number.

220425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220425 is a deficient number, since it is larger than the sum of its proper divisors (144135).

220425 is a wasteful number, since it uses less digits than its factorization.

220425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952 (or 2947 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 220425 is about 469.4944089124. The cubic root of 220425 is about 60.4069557652.

Adding to 220425 its reverse (524022), we get a palindrome (744447).

The spelling of 220425 in words is "two hundred twenty thousand, four hundred twenty-five".