2052303521 has 4 divisors (see below), whose sum is σ = 2062937412. Its totient is φ = 2041669632.

The previous prime is 2052303469. The next prime is 2052303541. The reversal of 2052303521 is 1253032502.

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 455182225 + 1597121296 = 21335^2 + 39964^2 .

It is a cyclic number.

It is not a de Polignac number, because 2052303521 - 2¹⁸ = 2052041377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2052303541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5316656 + ... + 5317041.

It is an arithmetic number, because the mean of its divisors is an integer number (515734353).

Almost surely, 2^2052303521 is an apocalyptic number.

It is an amenable number.

2052303521 is a deficient number, since it is larger than the sum of its proper divisors (10633891).

2052303521 is a wasteful number, since it uses less digits than its factorization.

2052303521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10633890.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2052303521 is about 45302.3566826275. The cubic root of 2052303521 is about 1270.8097262524.

The spelling of 2052303521 in words is "two billion, fifty-two million, three hundred three thousand, five hundred twenty-one".