22025506 has 8 divisors (see below), whose sum is σ = 34981740. Its totient is φ = 10364928.

The previous prime is 22025473. The next prime is 22025527. The reversal of 22025506 is 60552022.

It can be written as a sum of positive squares in 2 ways, for example, as 21706281 + 319225 = 4659^2 + 565^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323871 + ... + 323938.

Almost surely, 2^22025506 is an apocalyptic number.

22025506 is a deficient number, since it is larger than the sum of its proper divisors (12956234).

22025506 is a wasteful number, since it uses less digits than its factorization.

22025506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647828.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22025506 is about 4693.1339209530. The cubic root of 22025506 is about 280.3121773284.

Adding to 22025506 its reverse (60552022), we get a palindrome (82577528).

The spelling of 22025506 in words is "twenty-two million, twenty-five thousand, five hundred six".