25270222 has 4 divisors (see below), whose sum is σ = 37905336. Its totient is φ = 12635110.

The previous prime is 25270213. The next prime is 25270237. The reversal of 25270222 is 22207252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 25270193 and 25270202.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6317554 + ... + 6317557.

It is an arithmetic number, because the mean of its divisors is an integer number (9476334).

Almost surely, 2^25270222 is an apocalyptic number.

25270222 is a deficient number, since it is larger than the sum of its proper divisors (12635114).

25270222 is a wasteful number, since it uses less digits than its factorization.

25270222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12635113.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 25270222 is about 5026.9495720566. The cubic root of 25270222 is about 293.4515125854.

Adding to 25270222 its reverse (22207252), we get a palindrome (47477474).

The spelling of 25270222 in words is "twenty-five million, two hundred seventy thousand, two hundred twenty-two".