89565525 has 144 divisors (see below), whose sum is σ = 200403840. Its totient is φ = 37324800.

The previous prime is 89565523. The next prime is 89565529. The reversal of 89565525 is 52556598.

89565525 is a `hidden beast` number, since 8 + 95 + 6 + 552 + 5 = 666.

89565525 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 89565525 - 2¹ = 89565523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89565523) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1226889 + ... + 1226961.

Almost surely, 2^89565525 is an apocalyptic number.

It is an amenable number.

89565525 is an abundant number, since it is smaller than the sum of its proper divisors (110838315).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89565525 is a wasteful number, since it uses less digits than its factorization.

89565525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 148 counting only the distinct ones).

The product of its digits is 540000, while the sum is 45.

The square root of 89565525 is about 9463.9064344487. The cubic root of 89565525 is about 447.4181783970.

The spelling of 89565525 in words is "eighty-nine million, five hundred sixty-five thousand, five hundred twenty-five".