2075521801 has 4 divisors (see below), whose sum is σ = 2076461892. Its totient is φ = 2074581712.

The previous prime is 2075521787. The next prime is 2075521831. The reversal of 2075521801 is 1081255702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1669539600 + 405982201 = 40860^2 + 20149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2075521801 - 2⁵ = 2075521769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2075521831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466726 + ... + 471151.

It is an arithmetic number, because the mean of its divisors is an integer number (519115473).

Almost surely, 2^2075521801 is an apocalyptic number.

It is an amenable number.

2075521801 is a deficient number, since it is larger than the sum of its proper divisors (940091).

2075521801 is an equidigital number, since it uses as much as digits as its factorization.

2075521801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940090.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 2075521801 is about 45557.8950457547. The cubic root of 2075521801 is about 1275.5841078108.

The spelling of 2075521801 in words is "two billion, seventy-five million, five hundred twenty-one thousand, eight hundred one".