65009088 has 112 divisors (see below), whose sum is σ = 202448160. Its totient is φ = 20385792.

The previous prime is 65009083. The next prime is 65009099. The reversal of 65009088 is 88090056.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65009083) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28270 + ... + 30482.

Almost surely, 2^65009088 is an apocalyptic number.

65009088 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65009088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101224080).

65009088 is an abundant number, since it is smaller than the sum of its proper divisors (137439072).

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

65009088 is a wasteful number, since it uses less digits than its factorization.

65009088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251 (or 2235 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 65009088 is about 8062.8213424334. The cubic root of 65009088 is about 402.0913136296.

The spelling of 65009088 in words is "sixty-five million, nine thousand, eighty-eight".