2034521521 has 4 divisors (see below), whose sum is σ = 2038097700. Its totient is φ = 2030945344.

The previous prime is 2034521519. The next prime is 2034521581. The reversal of 2034521521 is 1251254302.

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 1222271521 + 812250000 = 34961^2 + 28500^2 .

It is a cyclic number.

It is not a de Polignac number, because 2034521521 - 2¹ = 2034521519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2034521581) 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, 1787236 + ... + 1788373.

It is an arithmetic number, because the mean of its divisors is an integer number (509524425).

Almost surely, 2^2034521521 is an apocalyptic number.

It is an amenable number.

2034521521 is a deficient number, since it is larger than the sum of its proper divisors (3576179).

2034521521 is an equidigital number, since it uses as much as digits as its factorization.

2034521521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576178.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2034521521 is about 45105.6706080289. The cubic root of 2034521521 is about 1267.1288023401.

Adding to 2034521521 its reverse (1251254302), we get a palindrome (3285775823).

The spelling of 2034521521 in words is "two billion, thirty-four million, five hundred twenty-one thousand, five hundred twenty-one".