22505035 has 32 divisors (see below), whose sum is σ = 31997952. Its totient is φ = 14878080.

The previous prime is 22505033. The next prime is 22505047. The reversal of 22505035 is 53050522.

It is not a de Polignac number, because 22505035 - 2¹ = 22505033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22504997 and 22505015.

It is not an unprimeable number, because it can be changed into a prime (22505033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177142 + ... + 177268.

It is an arithmetic number, because the mean of its divisors is an integer number (999936).

Almost surely, 2^22505035 is an apocalyptic number.

22505035 is a deficient number, since it is larger than the sum of its proper divisors (9492917).

22505035 is a wasteful number, since it uses less digits than its factorization.

22505035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 22505035 is about 4743.9471961648. The cubic root of 22505035 is about 282.3318653888.

Adding to 22505035 its reverse (53050522), we get a palindrome (75555557).

The spelling of 22505035 in words is "twenty-two million, five hundred five thousand, thirty-five".