65051765 has 8 divisors (see below), whose sum is σ = 78318240. Its totient is φ = 51870672.

The previous prime is 65051759. The next prime is 65051837. The reversal of 65051765 is 56715056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65051765 - 2⁸ = 65051509 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19655 + ... + 22724.

It is an arithmetic number, because the mean of its divisors is an integer number (9789780).

Almost surely, 2^65051765 is an apocalyptic number.

It is an amenable number.

65051765 is a deficient number, since it is larger than the sum of its proper divisors (13266475).

65051765 is a wasteful number, since it uses less digits than its factorization.

65051765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42691.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 65051765 is about 8065.4674384068. The cubic root of 65051765 is about 402.1792823420.

The spelling of 65051765 in words is "sixty-five million, fifty-one thousand, seven hundred sixty-five".