623225 has 12 divisors (see below), whose sum is σ = 783804. Its totient is φ = 491520.

The previous prime is 623221. The next prime is 623261. The reversal of 623225 is 522326.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 16384 + 606841 = 128^2 + 779^2 .

It is not a de Polignac number, because 623225 - 2² = 623221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 623197 and 623206.

It is not an unprimeable number, because it can be changed into a prime (623221) 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, 2297 + ... + 2553.

It is an arithmetic number, because the mean of its divisors is an integer number (65317).

2⁶²³²²⁵ is an apocalyptic number.

It is an amenable number.

623225 is a deficient number, since it is larger than the sum of its proper divisors (160579).

623225 is a wasteful number, since it uses less digits than its factorization.

623225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 359 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 623225 is about 789.4460082868. The cubic root of 623225 is about 85.4177817291.

It can be divided in two parts, 623 and 225, that added together give a palindrome (848).

The spelling of 623225 in words is "six hundred twenty-three thousand, two hundred twenty-five".