2053358821 has 8 divisors (see below), whose sum is σ = 2193386904. Its totient is φ = 1915468800.

The previous prime is 2053358803. The next prime is 2053358851. The reversal of 2053358821 is 1288533502.

It can be written as a sum of positive squares in 4 ways, for example, as 225 + 2053358596 = 15^2 + 45314^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2053358821 - 2¹⁷ = 2053227749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053358851) 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 7 ways as a sum of consecutive naturals, for example, 532530 + ... + 536371.

It is an arithmetic number, because the mean of its divisors is an integer number (274173363).

Almost surely, 2^2053358821 is an apocalyptic number.

It is an amenable number.

2053358821 is a deficient number, since it is larger than the sum of its proper divisors (140028083).

2053358821 is a wasteful number, since it uses less digits than its factorization.

2053358821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069031.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 2053358821 is about 45314.0024826764. The cubic root of 2053358821 is about 1271.0275068573.

The spelling of 2053358821 in words is "two billion, fifty-three million, three hundred fifty-eight thousand, eight hundred twenty-one".