25425222 has 8 divisors (see below), whose sum is σ = 50850456. Its totient is φ = 8475072.

The previous prime is 25425209. The next prime is 25425223. The reversal of 25425222 is 22252452.

It is a happy number.

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

25425222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25425192 and 25425201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425223) 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 3 ways as a sum of consecutive naturals, for example, 2118763 + ... + 2118774.

It is an arithmetic number, because the mean of its divisors is an integer number (6356307).

Almost surely, 2^25425222 is an apocalyptic number.

25425222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25425222 is a wasteful number, since it uses less digits than its factorization.

25425222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237542.

The product of its digits is 3200, while the sum is 24.

The square root of 25425222 is about 5042.3429078158. The cubic root of 25425222 is about 294.0502713795.

Adding to 25425222 its reverse (22252452), we get a palindrome (47677674).

The spelling of 25425222 in words is "twenty-five million, four hundred twenty-five thousand, two hundred twenty-two".