89781225 has 24 divisors (see below), whose sum is σ = 148844640. Its totient is φ = 47752320.

The previous prime is 89781173. The next prime is 89781247. The reversal of 89781225 is 52218798.

It is not a de Polignac number, because 89781225 - 2¹¹ = 89779177 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 29997 + ... + 32853.

It is an arithmetic number, because the mean of its divisors is an integer number (6201860).

Almost surely, 2^89781225 is an apocalyptic number.

It is an amenable number.

89781225 is a deficient number, since it is larger than the sum of its proper divisors (59063415).

89781225 is a wasteful number, since it uses less digits than its factorization.

89781225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289 (or 3284 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 89781225 is about 9475.2955099036. The cubic root of 89781225 is about 447.7770617631. Note that the first 3 decimals are identical.

The spelling of 89781225 in words is "eighty-nine million, seven hundred eighty-one thousand, two hundred twenty-five".