2097852521 has 4 divisors (see below), whose sum is σ = 2098564932. Its totient is φ = 2097140112.

The previous prime is 2097852467. The next prime is 2097852539. The reversal of 2097852521 is 1252587902.

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 406586896 + 1691265625 = 20164^2 + 41125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2097852521 - 2¹⁴ = 2097836137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2097852541) 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, 351770 + ... + 357683.

It is an arithmetic number, because the mean of its divisors is an integer number (524641233).

Almost surely, 2^2097852521 is an apocalyptic number.

It is an amenable number.

2097852521 is a deficient number, since it is larger than the sum of its proper divisors (712411).

2097852521 is an equidigital number, since it uses as much as digits as its factorization.

2097852521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712410.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 2097852521 is about 45802.3200394914. The cubic root of 2097852521 is about 1280.1425054962.

The spelling of 2097852521 in words is "two billion, ninety-seven million, eight hundred fifty-two thousand, five hundred twenty-one".