25022205 has 24 divisors (see below), whose sum is σ = 46709208. Its totient is φ = 12318336.

The previous prime is 25022203. The next prime is 25022209. The reversal of 25022205 is 50222052.

It can be written as a sum of positive squares in 4 ways, for example, as 311364 + 24710841 = 558^2 + 4971^2 .

It is not a de Polignac number, because 25022205 - 2¹ = 25022203 is a prime.

It is a super-2 number, since 2×25022205² = 1252221486124050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25022203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20802 + ... + 21971.

It is an arithmetic number, because the mean of its divisors is an integer number (1946217).

Almost surely, 2^25022205 is an apocalyptic number.

It is an amenable number.

25022205 is a deficient number, since it is larger than the sum of its proper divisors (21687003).

25022205 is a wasteful number, since it uses less digits than its factorization.

25022205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42797 (or 42794 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25022205 is about 5002.2200071568. The cubic root of 25022205 is about 292.4883186218.

Adding to 25022205 its reverse (50222052), we get a palindrome (75244257).

The spelling of 25022205 in words is "twenty-five million, twenty-two thousand, two hundred five".