235525133509 has 2 divisors, whose sum is σ = 235525133510. Its totient is φ = 235525133508.

The previous prime is 235525133477. The next prime is 235525133527. The reversal of 235525133509 is 905331525532.

235525133509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196914062500 + 38611071009 = 443750^2 + 196497^2 .

It is a cyclic number.

It is not a de Polignac number, because 235525133509 - 2⁵ = 235525133477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235525133549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117762566754 + 117762566755.

It is an arithmetic number, because the mean of its divisors is an integer number (117762566755).

Almost surely, 2^235525133509 is an apocalyptic number.

It is an amenable number.

235525133509 is a deficient number, since it is larger than the sum of its proper divisors (1).

235525133509 is an equidigital number, since it uses as much as digits as its factorization.

235525133509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 607500, while the sum is 43.

The spelling of 235525133509 in words is "two hundred thirty-five billion, five hundred twenty-five million, one hundred thirty-three thousand, five hundred nine".