25553244222 has 48 divisors (see below), whose sum is σ = 60747783408. Its totient is φ = 7698637440.

The previous prime is 25553244217. The next prime is 25553244257. The reversal of 25553244222 is 22244235552.

25553244222 is a `hidden beast` number, since 25 + 553 + 24 + 42 + 22 = 666.

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, 338743 + ... + 407250.

It is an arithmetic number, because the mean of its divisors is an integer number (1265578821).

Almost surely, 2^25553244222 is an apocalyptic number.

25553244222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25553244222 is an abundant number, since it is smaller than the sum of its proper divisors (35194539186).

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

25553244222 is a wasteful number, since it uses less digits than its factorization.

25553244222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746185 (or 746182 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

Adding to 25553244222 its reverse (22244235552), we get a palindrome (47797479774).

The spelling of 25553244222 in words is "twenty-five billion, five hundred fifty-three million, two hundred forty-four thousand, two hundred twenty-two".