622225 has 6 divisors (see below), whose sum is σ = 771590. Its totient is φ = 497760.

The previous prime is 622189. The next prime is 622241. The reversal of 622225 is 522226.

It can be written as a sum of positive squares in 3 ways, for example, as 7569 + 614656 = 87^2 + 784^2 .

It is a de Polignac number, because none of the positive numbers 2^k-622225 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12420 + ... + 12469.

2⁶²²²²⁵ is an apocalyptic number.

It is an amenable number.

622225 is a deficient number, since it is larger than the sum of its proper divisors (149365).

622225 is a wasteful number, since it uses less digits than its factorization.

622225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24899 (or 24894 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 622225 is about 788.8123984827. The cubic root of 622225 is about 85.3720713739.

Subtracting from 622225 its reverse (522226), we obtain a palindrome (99999).

The spelling of 622225 in words is "six hundred twenty-two thousand, two hundred twenty-five".