65625765 has 8 divisors (see below), whose sum is σ = 105001248. Its totient is φ = 35000400.

The previous prime is 65625751. The next prime is 65625773. The reversal of 65625765 is 56752656.

It is a happy number.

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

It is not a de Polignac number, because 65625765 - 2⁵ = 65625733 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, 2187511 + ... + 2187540.

It is an arithmetic number, because the mean of its divisors is an integer number (13125156).

Almost surely, 2^65625765 is an apocalyptic number.

It is an amenable number.

65625765 is a deficient number, since it is larger than the sum of its proper divisors (39375483).

65625765 is a wasteful number, since it uses less digits than its factorization.

65625765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375059.

The product of its digits is 378000, while the sum is 42.

The square root of 65625765 is about 8100.9730896973. The cubic root of 65625765 is about 403.3587288307.

The spelling of 65625765 in words is "sixty-five million, six hundred twenty-five thousand, seven hundred sixty-five".