65088581 has 2 divisors, whose sum is σ = 65088582. Its totient is φ = 65088580.

The previous prime is 65088577. The next prime is 65088593. The reversal of 65088581 is 18588056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33166081 + 31922500 = 5759^2 + 5650^2 .

It is a cyclic number.

It is not a de Polignac number, because 65088581 - 2² = 65088577 is a prime.

It is a super-2 number, since 2×65088581² = 8473046753187122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65088521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32544290 + 32544291.

It is an arithmetic number, because the mean of its divisors is an integer number (32544291).

Almost surely, 2^65088581 is an apocalyptic number.

It is an amenable number.

65088581 is a deficient number, since it is larger than the sum of its proper divisors (1).

65088581 is an equidigital number, since it uses as much as digits as its factorization.

65088581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 65088581 is about 8067.7494383502. The cubic root of 65088581 is about 402.2551390594.

The spelling of 65088581 in words is "sixty-five million, eighty-eight thousand, five hundred eighty-one".