25312235222 has 16 divisors (see below), whose sum is σ = 38464699392. Its totient is φ = 12491542440.

The previous prime is 25312235209. The next prime is 25312235237. The reversal of 25312235222 is 22253221352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160238 + ... + 276225.

It is an arithmetic number, because the mean of its divisors is an integer number (2404043712).

Almost surely, 2^25312235222 is an apocalyptic number.

25312235222 is a deficient number, since it is larger than the sum of its proper divisors (13152464170).

25312235222 is a wasteful number, since it uses less digits than its factorization.

25312235222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436843.

The product of its digits is 14400, while the sum is 29.

Adding to 25312235222 its reverse (22253221352), we get a palindrome (47565456574).

The spelling of 25312235222 in words is "twenty-five billion, three hundred twelve million, two hundred thirty-five thousand, two hundred twenty-two".