22505235 has 8 divisors (see below), whose sum is σ = 36008400. Its totient is φ = 12002784.

The previous prime is 22505207. The next prime is 22505239. The reversal of 22505235 is 53250522.

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

It is not a de Polignac number, because 22505235 - 2¹² = 22501139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22505239) 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, 750160 + ... + 750189.

It is an arithmetic number, because the mean of its divisors is an integer number (4501050).

Almost surely, 2^22505235 is an apocalyptic number.

22505235 is a deficient number, since it is larger than the sum of its proper divisors (13503165).

22505235 is a wasteful number, since it uses less digits than its factorization.

22505235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500357.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 22505235 is about 4743.9682756106. The cubic root of 22505235 is about 282.3327017381.

Adding to 22505235 its reverse (53250522), we get a palindrome (75755757).

The spelling of 22505235 in words is "twenty-two million, five hundred five thousand, two hundred thirty-five".