3531522509 has 2 divisors, whose sum is σ = 3531522510. Its totient is φ = 3531522508.

The previous prime is 3531522451. The next prime is 3531522539. The reversal of 3531522509 is 9052251353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2954466025 + 577056484 = 54355^2 + 24022^2 .

It is an emirp because it is prime and its reverse (9052251353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3531522509 - 2²⁸ = 3263087053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3531522539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765761254 + 1765761255.

It is an arithmetic number, because the mean of its divisors is an integer number (1765761255).

Almost surely, 2^3531522509 is an apocalyptic number.

It is an amenable number.

3531522509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3531522509 is an equidigital number, since it uses as much as digits as its factorization.

3531522509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 3531522509 is about 59426.6144837479. The cubic root of 3531522509 is about 1522.8390080605.

The spelling of 3531522509 in words is "three billion, five hundred thirty-one million, five hundred twenty-two thousand, five hundred nine".