22025231 has 8 divisors (see below), whose sum is σ = 22506000. Its totient is φ = 21548160.

The previous prime is 22025207. The next prime is 22025233. The reversal of 22025231 is 13252022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22025231 - 2⁶ = 22025167 is a prime.

It is a super-2 number, since 2×22025231² = 970221601206722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22025233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13445 + ... + 14993.

It is an arithmetic number, because the mean of its divisors is an integer number (2813250).

Almost surely, 2^22025231 is an apocalyptic number.

22025231 is a deficient number, since it is larger than the sum of its proper divisors (480769).

22025231 is a wasteful number, since it uses less digits than its factorization.

22025231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22025231 is about 4693.1046227418. The cubic root of 22025231 is about 280.3110107087.

Adding to 22025231 its reverse (13252022), we get a palindrome (35277253).

The spelling of 22025231 in words is "twenty-two million, twenty-five thousand, two hundred thirty-one".