25205025222 has 48 divisors (see below), whose sum is σ = 58913967840. Its totient is φ = 7741910016.

The previous prime is 25205025217. The next prime is 25205025271. The reversal of 25205025222 is 22252050252.

It is a super-2 number, since 2×25205025222² (a number of 22 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 41679 + ... + 228357.

It is an arithmetic number, because the mean of its divisors is an integer number (1227374330).

Almost surely, 2^25205025222 is an apocalyptic number.

25205025222 is an abundant number, since it is smaller than the sum of its proper divisors (33708942618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25205025222 is a wasteful number, since it uses less digits than its factorization.

25205025222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187277 (or 187274 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

Adding to 25205025222 its reverse (22252050252), we get a palindrome (47457075474).

The spelling of 25205025222 in words is "twenty-five billion, two hundred five million, twenty-five thousand, two hundred twenty-two".