65089570 has 32 divisors (see below), whose sum is σ = 144200448. Its totient is φ = 20599488.

The previous prime is 65089559. The next prime is 65089579. The reversal of 65089570 is 7598056.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (65089579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34854 + ... + 36673.

It is an arithmetic number, because the mean of its divisors is an integer number (4506264).

Almost surely, 2^65089570 is an apocalyptic number.

65089570 is an abundant number, since it is smaller than the sum of its proper divisors (79110878).

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

65089570 is a wasteful number, since it uses less digits than its factorization.

65089570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71554.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 65089570 is about 8067.8107315430. The cubic root of 65089570 is about 402.2571764282.

The spelling of 65089570 in words is "sixty-five million, eighty-nine thousand, five hundred seventy".