2052663521 has 8 divisors (see below), whose sum is σ = 2173848840. Its totient is φ = 1931527168.

The previous prime is 2052663491. The next prime is 2052663527. The reversal of 2052663521 is 1253662502.

It can be written as a sum of positive squares in 4 ways, for example, as 198499921 + 1854163600 = 14089^2 + 43060^2 .

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 2052663521 - 2¹⁴ = 2052647137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2052663527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107765 + ... + 125373.

It is an arithmetic number, because the mean of its divisors is an integer number (271731105).

Almost surely, 2^2052663521 is an apocalyptic number.

It is an amenable number.

2052663521 is a deficient number, since it is larger than the sum of its proper divisors (121185319).

2052663521 is a wasteful number, since it uses less digits than its factorization.

2052663521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24483.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 2052663521 is about 45306.3298116279. The cubic root of 2052663521 is about 1270.8840272755.

The spelling of 2052663521 in words is "two billion, fifty-two million, six hundred sixty-three thousand, five hundred twenty-one".