195525013 has 2 divisors, whose sum is σ = 195525014. Its totient is φ = 195525012.

The previous prime is 195524977. The next prime is 195525037. The reversal of 195525013 is 310525591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187333969 + 8191044 = 13687^2 + 2862^2 .

It is a cyclic number.

It is not a de Polignac number, because 195525013 - 2²⁵ = 161970581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195525073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97762506 + 97762507.

It is an arithmetic number, because the mean of its divisors is an integer number (97762507).

Almost surely, 2^195525013 is an apocalyptic number.

It is an amenable number.

195525013 is a deficient number, since it is larger than the sum of its proper divisors (1).

195525013 is an equidigital number, since it uses as much as digits as its factorization.

195525013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 195525013 is about 13983.0258885550. The cubic root of 195525013 is about 580.4089594930.

The spelling of 195525013 in words is "one hundred ninety-five million, five hundred twenty-five thousand, thirteen".