2051501312 has 72 divisors (see below), whose sum is σ = 4699662912. Its totient is φ = 875520000.

The previous prime is 2051501303. The next prime is 2051501329. The reversal of 2051501312 is 2131051502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447512 + ... + 452072.

It is an arithmetic number, because the mean of its divisors is an integer number (65273096).

Almost surely, 2^2051501312 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 2051501312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2349831456).

2051501312 is an abundant number, since it is smaller than the sum of its proper divisors (2648161600).

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

2051501312 is an equidigital number, since it uses as much as digits as its factorization.

2051501312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835 (or 4821 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2051501312 is about 45293.5018738892. The cubic root of 2051501312 is about 1270.6441256891.

Adding to 2051501312 its reverse (2131051502), we get a palindrome (4182552814).

The spelling of 2051501312 in words is "two billion, fifty-one million, five hundred one thousand, three hundred twelve".