2255320431232 has 128 divisors (see below), whose sum is σ = 5191113254400. Its totient is φ = 965230525440.

The previous prime is 2255320431193. The next prime is 2255320431241. The reversal of 2255320431232 is 2321340235522.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4101973 + ... + 4619179.

It is an arithmetic number, because the mean of its divisors is an integer number (40555572300).

Almost surely, 2^{2255320431232} is an apocalyptic number.

2255320431232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255320431232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2595556627200).

2255320431232 is an abundant number, since it is smaller than the sum of its proper divisors (2935792823168).

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

2255320431232 is a wasteful number, since it uses less digits than its factorization.

2255320431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517414 (or 517402 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 2255320431232 its reverse (2321340235522), we get a palindrome (4576660666754).

The spelling of 2255320431232 in words is "two trillion, two hundred fifty-five billion, three hundred twenty million, four hundred thirty-one thousand, two hundred thirty-two".