97525489 has 2 divisors, whose sum is σ = 97525490. Its totient is φ = 97525488.

The previous prime is 97525457. The next prime is 97525501. The reversal of 97525489 is 98452579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 14861025 = 9092^2 + 3855^2 .

It is an emirp because it is prime and its reverse (98452579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97525489 - 2⁵ = 97525457 is a prime.

It is a super-2 number, since 2×97525489² = 19022442009378242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97525189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48762744 + 48762745.

It is an arithmetic number, because the mean of its divisors is an integer number (48762745).

Almost surely, 2^97525489 is an apocalyptic number.

It is an amenable number.

97525489 is a deficient number, since it is larger than the sum of its proper divisors (1).

97525489 is an equidigital number, since it uses as much as digits as its factorization.

97525489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 49.

The square root of 97525489 is about 9875.4994304086. The cubic root of 97525489 is about 460.2983083966.

The spelling of 97525489 in words is "ninety-seven million, five hundred twenty-five thousand, four hundred eighty-nine".