22650025 has 12 divisors (see below), whose sum is σ = 28253772. Its totient is φ = 18011840.

The previous prime is 22650007. The next prime is 22650029. The reversal of 22650025 is 52005622.

It can be written as a sum of positive squares in 6 ways, for example, as 1929321 + 20720704 = 1389^2 + 4552^2 .

It is not a de Polignac number, because 22650025 - 2⁵ = 22649993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22649978 and 22650005.

It is not an unprimeable number, because it can be changed into a prime (22650029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1707 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (2354481).

Almost surely, 2^22650025 is an apocalyptic number.

22650025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22650025 is a deficient number, since it is larger than the sum of its proper divisors (5603747).

22650025 is a wasteful number, since it uses less digits than its factorization.

22650025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420 (or 5415 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22650025 is about 4759.2042402065. The cubic root of 22650025 is about 282.9368811274.

Adding to 22650025 its reverse (52005622), we get a palindrome (74655647).

The spelling of 22650025 in words is "twenty-two million, six hundred fifty thousand, twenty-five".