2251026064 has 80 divisors (see below), whose sum is σ = 5416161280. Its totient is φ = 884442240.

The previous prime is 2251026059. The next prime is 2251026101. The reversal of 2251026064 is 4606201522.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48907 + ... + 83029.

It is an arithmetic number, because the mean of its divisors is an integer number (67702016).

Almost surely, 2^2251026064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2251026064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2708080640).

2251026064 is an abundant number, since it is smaller than the sum of its proper divisors (3165135216).

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

2251026064 is a wasteful number, since it uses less digits than its factorization.

2251026064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34188 (or 34182 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2251026064 is about 47444.9793339611. The cubic root of 2251026064 is about 1310.5698556038.

Adding to 2251026064 its reverse (4606201522), we get a palindrome (6857227586).

The spelling of 2251026064 in words is "two billion, two hundred fifty-one million, twenty-six thousand, sixty-four".