65450417 has 4 divisors (see below), whose sum is σ = 65619060. Its totient is φ = 65281776.

The previous prime is 65450381. The next prime is 65450431. The reversal of 65450417 is 71405456.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16394401 + 49056016 = 4049^2 + 7004^2 .

It is a cyclic number.

It is not a de Polignac number, because 65450417 - 2¹² = 65446321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65450717) 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, 83738 + ... + 84515.

It is an arithmetic number, because the mean of its divisors is an integer number (16404765).

Almost surely, 2^65450417 is an apocalyptic number.

It is an amenable number.

65450417 is a deficient number, since it is larger than the sum of its proper divisors (168643).

65450417 is a wasteful number, since it uses less digits than its factorization.

65450417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168642.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 65450417 is about 8090.1432002159. The cubic root of 65450417 is about 402.9991585014. Note that the first 3 decimals are identical.

The spelling of 65450417 in words is "sixty-five million, four hundred fifty thousand, four hundred seventeen".