65751983 has 4 divisors (see below), whose sum is σ = 71729448. Its totient is φ = 59774520.

The previous prime is 65751979. The next prime is 65752021. The reversal of 65751983 is 38915756.

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 65751983 - 2² = 65751979 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 (65751943) 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, 2988716 + ... + 2988737.

It is an arithmetic number, because the mean of its divisors is an integer number (17932362).

Almost surely, 2^65751983 is an apocalyptic number.

65751983 is a deficient number, since it is larger than the sum of its proper divisors (5977465).

65751983 is a wasteful number, since it uses less digits than its factorization.

65751983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977464.

The product of its digits is 226800, while the sum is 44.

The square root of 65751983 is about 8108.7596462098. The cubic root of 65751983 is about 403.6171564353.

It can be divided in two parts, 6575 and 1983, that added together give a palindrome (8558).

The spelling of 65751983 in words is "sixty-five million, seven hundred fifty-one thousand, nine hundred eighty-three".