65995953 has 4 divisors (see below), whose sum is σ = 87994608. Its totient is φ = 43997300.

The previous prime is 65995939. The next prime is 65995981. The reversal of 65995953 is 35959956.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65995953 - 2¹⁴ = 65979569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65995896 and 65995905.

It is not an unprimeable number, because it can be changed into a prime (65995933) 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, 10999323 + ... + 10999328.

It is an arithmetic number, because the mean of its divisors is an integer number (21998652).

Almost surely, 2^65995953 is an apocalyptic number.

It is an amenable number.

65995953 is a deficient number, since it is larger than the sum of its proper divisors (21998655).

65995953 is a wasteful number, since it uses less digits than its factorization.

65995953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21998654.

The product of its digits is 1640250, while the sum is 51.

The square root of 65995953 is about 8123.7893251856. The cubic root of 65995953 is about 404.1157418437.

The spelling of 65995953 in words is "sixty-five million, nine hundred ninety-five thousand, nine hundred fifty-three".