65133863 has 4 divisors (see below), whose sum is σ = 66648648. Its totient is φ = 63619080.

The previous prime is 65133853. The next prime is 65133877. The reversal of 65133863 is 36833156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65133863 - 2⁶ = 65133799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65133853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757328 + ... + 757413.

It is an arithmetic number, because the mean of its divisors is an integer number (16662162).

Almost surely, 2^65133863 is an apocalyptic number.

65133863 is a deficient number, since it is larger than the sum of its proper divisors (1514785).

65133863 is a wasteful number, since it uses less digits than its factorization.

65133863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514784.

The product of its digits is 38880, while the sum is 35.

The square root of 65133863 is about 8070.5553092709. Note that the first 3 decimals coincide. The cubic root of 65133863 is about 402.3484001432.

The spelling of 65133863 in words is "sixty-five million, one hundred thirty-three thousand, eight hundred sixty-three".