222424425 has 36 divisors (see below), whose sum is σ = 399526140. Its totient is φ = 118287360.

The previous prime is 222424417. The next prime is 222424441. The reversal of 222424425 is 524424222.

It can be written as a sum of positive squares in 6 ways, for example, as 35856144 + 186568281 = 5988^2 + 13659^2 .

It is not a de Polignac number, because 222424425 - 2³ = 222424417 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 90817 + ... + 93233.

Almost surely, 2^222424425 is an apocalyptic number.

222424425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222424425 is a deficient number, since it is larger than the sum of its proper divisors (177101715).

222424425 is a wasteful number, since it uses less digits than its factorization.

222424425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842 (or 2834 counting only the distinct ones).

The product of its digits is 10240, while the sum is 27.

The square root of 222424425 is about 14913.9003952688. The cubic root of 222424425 is about 605.8905220002.

Adding to 222424425 its reverse (524424222), we get a palindrome (746848647).

The spelling of 222424425 in words is "two hundred twenty-two million, four hundred twenty-four thousand, four hundred twenty-five".