2256531423006 has 96 divisors (see below), whose sum is σ = 5420248012800. Its totient is φ = 623809771200.

The previous prime is 2256531422963. The next prime is 2256531423007. The reversal of 2256531423006 is 6003241356522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256531423007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56678295 + ... + 56718093.

It is an arithmetic number, because the mean of its divisors is an integer number (56460916800).

Almost surely, 2^{2256531423006} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2256531423006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2710124006400).

2256531423006 is an abundant number, since it is smaller than the sum of its proper divisors (3163716589794).

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

2256531423006 is a wasteful number, since it uses less digits than its factorization.

2256531423006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46070 (or 46063 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 2256531423006 its reverse (6003241356522), we get a palindrome (8259772779528).

The spelling of 2256531423006 in words is "two trillion, two hundred fifty-six billion, five hundred thirty-one million, four hundred twenty-three thousand, six".