25052222 has 48 divisors (see below), whose sum is σ = 44271360. Its totient is φ = 10591776.

The previous prime is 25052197. The next prime is 25052227. The reversal of 25052222 is 22225052.

It is a happy number.

It is a super-2 number, since 2×25052222² = 1255227654274568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25052194 and 25052203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301793 + ... + 301875.

It is an arithmetic number, because the mean of its divisors is an integer number (922320).

Almost surely, 2^25052222 is an apocalyptic number.

25052222 is a deficient number, since it is larger than the sum of its proper divisors (19219138).

25052222 is a wasteful number, since it uses less digits than its factorization.

25052222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 25052222 is about 5005.2194757073. The cubic root of 25052222 is about 292.6052296278.

Adding to 25052222 its reverse (22225052), we get a palindrome (47277274).

The spelling of 25052222 in words is "twenty-five million, fifty-two thousand, two hundred twenty-two".