2255064438 has 64 divisors (see below), whose sum is σ = 5190739200. Its totient is φ = 645932160.

The previous prime is 2255064431. The next prime is 2255064473. The reversal of 2255064438 is 8344605522.

2255064438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2255064396 and 2255064405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255064431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636520 + ... + 640052.

It is an arithmetic number, because the mean of its divisors is an integer number (81105300).

Almost surely, 2^2255064438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255064438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2595369600).

2255064438 is an abundant number, since it is smaller than the sum of its proper divisors (2935674762).

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

2255064438 is a wasteful number, since it uses less digits than its factorization.

2255064438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077.

The product of its (nonzero) digits is 230400, while the sum is 39.

The square root of 2255064438 is about 47487.5187601963. The cubic root of 2255064438 is about 1311.3531146223.

The spelling of 2255064438 in words is "two billion, two hundred fifty-five million, sixty-four thousand, four hundred thirty-eight".