65133785 has 8 divisors (see below), whose sum is σ = 78204096. Its totient is φ = 52078000.

The previous prime is 65133779. The next prime is 65133793. The reversal of 65133785 is 58733156.

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

It is not a de Polignac number, because 65133785 - 2⁶ = 65133721 is a prime.

It is a Duffinian 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, 14252 + ... + 18258.

It is an arithmetic number, because the mean of its divisors is an integer number (9775512).

Almost surely, 2^65133785 is an apocalyptic number.

It is an amenable number.

65133785 is a deficient number, since it is larger than the sum of its proper divisors (13070311).

65133785 is a wasteful number, since it uses less digits than its factorization.

65133785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263.

The product of its digits is 75600, while the sum is 38.

The square root of 65133785 is about 8070.5504768882. The cubic root of 65133785 is about 402.3482395345.

The spelling of 65133785 in words is "sixty-five million, one hundred thirty-three thousand, seven hundred eighty-five".