2152032521 has 4 divisors (see below), whose sum is σ = 2166284544. Its totient is φ = 2137780500.

The previous prime is 2152032433. The next prime is 2152032527. The reversal of 2152032521 is 1252302512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152032521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152032527) 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, 7125785 + ... + 7126086.

It is an arithmetic number, because the mean of its divisors is an integer number (541571136).

Almost surely, 2^2152032521 is an apocalyptic number.

It is an amenable number.

2152032521 is a deficient number, since it is larger than the sum of its proper divisors (14252023).

2152032521 is a wasteful number, since it uses less digits than its factorization.

2152032521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14252022.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2152032521 is about 46390.0045376156. The cubic root of 2152032521 is about 1291.0694656647.

The spelling of 2152032521 in words is "two billion, one hundred fifty-two million, thirty-two thousand, five hundred twenty-one".