220252225 has 6 divisors (see below), whose sum is σ = 273112790. Its totient is φ = 176201760.

The previous prime is 220252183. The next prime is 220252261. The reversal of 220252225 is 522252022.

It can be written as a sum of positive squares in 3 ways, for example, as 7354944 + 212897281 = 2712^2 + 14591^2 .

It is a de Polignac number, because none of the positive numbers 2^k-220252225 is a prime.

It is a super-2 number, since 2×220252225² = 97022085234901250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220252196 and 220252205.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4405020 + ... + 4405069.

Almost surely, 2^220252225 is an apocalyptic number.

220252225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220252225 is a deficient number, since it is larger than the sum of its proper divisors (52860565).

220252225 is an equidigital number, since it uses as much as digits as its factorization.

220252225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8810099 (or 8810094 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 220252225 is about 14840.8970416212. The cubic root of 220252225 is about 603.9116877813.

The spelling of 220252225 in words is "two hundred twenty million, two hundred fifty-two thousand, two hundred twenty-five".