22350225 has 24 divisors (see below), whose sum is σ = 38148352. Its totient is φ = 11534400.

The previous prime is 22350221. The next prime is 22350253. The reversal of 22350225 is 52205322.

It is not a de Polignac number, because 22350225 - 2² = 22350221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22350221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2482 + ... + 7131.

Almost surely, 2^22350225 is an apocalyptic number.

22350225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22350225 is a deficient number, since it is larger than the sum of its proper divisors (15798127).

22350225 is a wasteful number, since it uses less digits than its factorization.

22350225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657 (or 9652 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22350225 is about 4727.6024579061. The cubic root of 22350225 is about 281.6829972364.

Adding to 22350225 its reverse (52205322), we get a palindrome (74555547).

The spelling of 22350225 in words is "twenty-two million, three hundred fifty thousand, two hundred twenty-five".