65526489 has 40 divisors (see below), whose sum is σ = 112713920. Its totient is φ = 37161504.

The previous prime is 65526481. The next prime is 65526491. The reversal of 65526489 is 98462556.

It is not a de Polignac number, because 65526489 - 2³ = 65526481 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65526481) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 92067 + ... + 92775.

It is an arithmetic number, because the mean of its divisors is an integer number (2817848).

Almost surely, 2^65526489 is an apocalyptic number.

It is an amenable number.

65526489 is a deficient number, since it is larger than the sum of its proper divisors (47187431).

65526489 is a wasteful number, since it uses less digits than its factorization.

65526489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 882 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 65526489 is about 8094.8433585833. The cubic root of 65526489 is about 403.1552312645.

It can be divided in two parts, 6552 and 6489, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 65526489 in words is "sixty-five million, five hundred twenty-six thousand, four hundred eighty-nine".