22025800 has 24 divisors (see below), whose sum is σ = 51210450. Its totient is φ = 8810240.

The previous prime is 22025791. The next prime is 22025803. The reversal of 22025800 is 852022.

It can be written as a sum of positive squares in 3 ways, for example, as 14638276 + 7387524 = 3826^2 + 2718^2 .

It is not an unprimeable number, because it can be changed into a prime (22025803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54865 + ... + 55264.

Almost surely, 2^22025800 is an apocalyptic number.

22025800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22025800 is an abundant number, since it is smaller than the sum of its proper divisors (29184650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22025800 is a wasteful number, since it uses less digits than its factorization.

22025800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110145 (or 110136 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 22025800 is about 4693.1652432021. The cubic root of 22025800 is about 280.3134245402.

Adding to 22025800 its reverse (852022), we get a palindrome (22877822).

Subtracting from 22025800 its reverse (852022), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 22025800 in words is "twenty-two million, twenty-five thousand, eight hundred".