97525189 has 2 divisors, whose sum is σ = 97525190. Its totient is φ = 97525188.

The previous prime is 97525187. The next prime is 97525193. The reversal of 97525189 is 98152579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58400164 + 39125025 = 7642^2 + 6255^2 .

It is a cyclic number.

It is not a de Polignac number, because 97525189 - 2¹ = 97525187 is a prime.

It is a super-2 number, since 2×97525189² = 19022324978971442, which contains 22 as substring.

Together with 97525187, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97525187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48762594 + 48762595.

It is an arithmetic number, because the mean of its divisors is an integer number (48762595).

Almost surely, 2^97525189 is an apocalyptic number.

It is an amenable number.

97525189 is a deficient number, since it is larger than the sum of its proper divisors (1).

97525189 is an equidigital number, since it uses as much as digits as its factorization.

97525189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 46.

The square root of 97525189 is about 9875.4842412917. The cubic root of 97525189 is about 460.2978364187.

It can be divided in two parts, 9752 and 5189, that added together give a palindrome (14941).

The spelling of 97525189 in words is "ninety-seven million, five hundred twenty-five thousand, one hundred eighty-nine".