89025509 has 2 divisors, whose sum is σ = 89025510. Its totient is φ = 89025508.

The previous prime is 89025499. The next prime is 89025539. The reversal of 89025509 is 90552098.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68973025 + 20052484 = 8305^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 89025509 - 2⁸ = 89025253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89025539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44512754 + 44512755.

It is an arithmetic number, because the mean of its divisors is an integer number (44512755).

Almost surely, 2^89025509 is an apocalyptic number.

It is an amenable number.

89025509 is a deficient number, since it is larger than the sum of its proper divisors (1).

89025509 is an equidigital number, since it uses as much as digits as its factorization.

89025509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 89025509 is about 9435.3330094915. Note that the first 3 decimals coincide. The cubic root of 89025509 is about 446.5171613574.

The spelling of 89025509 in words is "eighty-nine million, twenty-five thousand, five hundred nine".