2581323010 has 64 divisors (see below), whose sum is σ = 5631316992. Its totient is φ = 831661056.

The previous prime is 2581322999. The next prime is 2581323013. The reversal of 2581323010 is 103231852.

It is not an unprimeable number, because it can be changed into a prime (2581323013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1013799 + ... + 1016341.

It is an arithmetic number, because the mean of its divisors is an integer number (87989328).

Almost surely, 2^2581323010 is an apocalyptic number.

2581323010 is an abundant number, since it is smaller than the sum of its proper divisors (3049993982).

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

2581323010 is a wasteful number, since it uses less digits than its factorization.

2581323010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2581323010 is about 50806.7220946205. The cubic root of 2581323010 is about 1371.7683684051.

Adding to 2581323010 its reverse (103231852), we get a palindrome (2684554862).

The spelling of 2581323010 in words is "two billion, five hundred eighty-one million, three hundred twenty-three thousand, ten".