525245197 has 6 divisors (see below), whose sum is σ = 534000714. Its totient is φ = 516630960.

The previous prime is 525245191. The next prime is 525245221. The reversal of 525245197 is 791542525.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17464041 + 507781156 = 4179^2 + 22534^2 .

It is a de Polignac number, because none of the positive numbers 2^k-525245197 is a prime.

It is a super-4 number, since 4×525245197⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525245191) 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 in 5 ways as a sum of consecutive naturals, for example, 66858 + ... + 74299.

It is an arithmetic number, because the mean of its divisors is an integer number (89000119).

Almost surely, 2^525245197 is an apocalyptic number.

It is an amenable number.

525245197 is a deficient number, since it is larger than the sum of its proper divisors (8755517).

525245197 is an equidigital number, since it uses as much as digits as its factorization.

525245197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141279 (or 141218 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 525245197 is about 22918.2284873853. The cubic root of 525245197 is about 806.8398932635.

The spelling of 525245197 in words is "five hundred twenty-five million, two hundred forty-five thousand, one hundred ninety-seven".