25522324022225 has 6 divisors (see below), whose sum is σ = 31647681787590. Its totient is φ = 20417859217760.

The previous prime is 25522324022189. The next prime is 25522324022249. The reversal of 25522324022225 is 52222042322552.

It can be written as a sum of positive squares in 3 ways, for example, as 476463009169 + 25045861013056 = 690263^2 + 5004584^2 .

It is not a de Polignac number, because 25522324022225 - 2⁸ = 25522324021969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510446480420 + ... + 510446480469.

It is an arithmetic number, because the mean of its divisors is an integer number (5274613631265).

Almost surely, 2^{25522324022225} is an apocalyptic number.

25522324022225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25522324022225 is a deficient number, since it is larger than the sum of its proper divisors (6125357765365).

25522324022225 is a wasteful number, since it uses less digits than its factorization.

25522324022225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020892960899 (or 1020892960894 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 25522324022225 its reverse (52222042322552), we get a palindrome (77744366344777).

The spelling of 25522324022225 in words is "twenty-five trillion, five hundred twenty-two billion, three hundred twenty-four million, twenty-two thousand, two hundred twenty-five".