22505150 has 12 divisors (see below), whose sum is σ = 41859672. Its totient is φ = 9002040.

The previous prime is 22505149. The next prime is 22505159. The reversal of 22505150 is 5150522.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505159) 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, 225002 + ... + 225101.

It is an arithmetic number, because the mean of its divisors is an integer number (3488306).

Almost surely, 2^22505150 is an apocalyptic number.

22505150 is a deficient number, since it is larger than the sum of its proper divisors (19354522).

22505150 is a wasteful number, since it uses less digits than its factorization.

22505150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450115 (or 450110 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 22505150 is about 4743.9593168576. The cubic root of 22505150 is about 282.3323462903.

Adding to 22505150 its reverse (5150522), we get a palindrome (27655672).

The spelling of 22505150 in words is "twenty-two million, five hundred five thousand, one hundred fifty".