25522145 has 16 divisors (see below), whose sum is σ = 34490880. Its totient is φ = 17961600.

The previous prime is 25522129. The next prime is 25522153. The reversal of 25522145 is 54122552.

It is not a de Polignac number, because 25522145 - 2⁴ = 25522129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5780 + ... + 9189.

It is an arithmetic number, because the mean of its divisors is an integer number (2155680).

Almost surely, 2^25522145 is an apocalyptic number.

It is an amenable number.

25522145 is a deficient number, since it is larger than the sum of its proper divisors (8968735).

25522145 is a wasteful number, since it uses less digits than its factorization.

25522145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15016.

The product of its digits is 4000, while the sum is 26.

The square root of 25522145 is about 5051.9446750732. The cubic root of 25522145 is about 294.4234453861.

Adding to 25522145 its reverse (54122552), we get a palindrome (79644697).

The spelling of 25522145 in words is "twenty-five million, five hundred twenty-two thousand, one hundred forty-five".