25225522 has 8 divisors (see below), whose sum is σ = 43243776. Its totient is φ = 10810932.

The previous prime is 25225489. The next prime is 25225523. The reversal of 25225522 is 22552252.

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

It is not an unprimeable number, because it can be changed into a prime (25225523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900898 + ... + 900925.

It is an arithmetic number, because the mean of its divisors is an integer number (5405472).

Almost surely, 2^25225522 is an apocalyptic number.

25225522 is a deficient number, since it is larger than the sum of its proper divisors (18018254).

25225522 is a wasteful number, since it uses less digits than its factorization.

25225522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801832.

The product of its digits is 4000, while the sum is 25.

The square root of 25225522 is about 5022.5015679440. The cubic root of 25225522 is about 293.2783835890.

Adding to 25225522 its reverse (22552252), we get a palindrome (47777774).

The spelling of 25225522 in words is "twenty-five million, two hundred twenty-five thousand, five hundred twenty-two".