22553235 has 40 divisors (see below), whose sum is σ = 40772160. Its totient is φ = 11926656.

The previous prime is 22553233. The next prime is 22553243. The reversal of 22553235 is 53235522.

It is not a de Polignac number, because 22553235 - 2¹ = 22553233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22553199 and 22553208.

It is not an unprimeable number, because it can be changed into a prime (22553231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 94246 + ... + 94484.

It is an arithmetic number, because the mean of its divisors is an integer number (1019304).

Almost surely, 2^22553235 is an apocalyptic number.

22553235 is a deficient number, since it is larger than the sum of its proper divisors (18218925).

22553235 is a wasteful number, since it uses less digits than its factorization.

22553235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 480 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 22553235 is about 4749.0246367017. The cubic root of 22553235 is about 282.5332824232.

Adding to 22553235 its reverse (53235522), we get a palindrome (75788757).

The spelling of 22553235 in words is "twenty-two million, five hundred fifty-three thousand, two hundred thirty-five".