525261197 has 2 divisors, whose sum is σ = 525261198. Its totient is φ = 525261196.

The previous prime is 525261167. The next prime is 525261221. The reversal of 525261197 is 791162525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372837481 + 152423716 = 19309^2 + 12346^2 .

It is a cyclic number.

It is not a de Polignac number, because 525261197 - 2⁶ = 525261133 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525261197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525261167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262630598 + 262630599.

It is an arithmetic number, because the mean of its divisors is an integer number (262630599).

Almost surely, 2^525261197 is an apocalyptic number.

It is an amenable number.

525261197 is a deficient number, since it is larger than the sum of its proper divisors (1).

525261197 is an equidigital number, since it uses as much as digits as its factorization.

525261197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 38.

The square root of 525261197 is about 22918.5775518464. The cubic root of 525261197 is about 806.8480858227.

The spelling of 525261197 in words is "five hundred twenty-five million, two hundred sixty-one thousand, one hundred ninety-seven".