2051799552 has 320 divisors, whose sum is σ = 6740997120. Its totient is φ = 611020800.

The previous prime is 2051799551. The next prime is 2051799611. The reversal of 2051799552 is 2559971502.

2051799552 is a `hidden beast` number, since 2 + 0 + 5 + 1 + 7 + 99 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2051799498 and 2051799507.

It is not an unprimeable number, because it can be changed into a prime (2051799551) 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, 15662527 + ... + 15662657.

It is an arithmetic number, because the mean of its divisors is an integer number (21065616).

Almost surely, 2^2051799552 is an apocalyptic number.

2051799552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2051799552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370498560).

2051799552 is an abundant number, since it is smaller than the sum of its proper divisors (4689197568).

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

2051799552 is a wasteful number, since it uses less digits than its factorization.

2051799552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 2051799552 is about 45296.7940587411. The cubic root of 2051799552 is about 1270.7056966208.

The spelling of 2051799552 in words is "two billion, fifty-one million, seven hundred ninety-nine thousand, five hundred fifty-two".