22525005 has 8 divisors (see below), whose sum is σ = 36040032. Its totient is φ = 12013328.

The previous prime is 22525001. The next prime is 22525037. The reversal of 22525005 is 50052522.

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

It is a cyclic number.

It is not a de Polignac number, because 22525005 - 2² = 22525001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525001) 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, 750819 + ... + 750848.

It is an arithmetic number, because the mean of its divisors is an integer number (4505004).

Almost surely, 2^22525005 is an apocalyptic number.

It is an amenable number.

22525005 is a deficient number, since it is larger than the sum of its proper divisors (13515027).

22525005 is a wasteful number, since it uses less digits than its factorization.

22525005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501675.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 22525005 is about 4746.0515167874. The cubic root of 22525005 is about 282.4153504176.

Adding to 22525005 its reverse (50052522), we get a palindrome (72577527).

The spelling of 22525005 in words is "twenty-two million, five hundred twenty-five thousand, five".