65266417 has 4 divisors (see below), whose sum is σ = 69105636. Its totient is φ = 61427200.

The previous prime is 65266391. The next prime is 65266423. The reversal of 65266417 is 71466256.

It is a happy number.

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 32364721 + 32901696 = 5689^2 + 5736^2 .

It is a cyclic number.

It is not a de Polignac number, because 65266417 - 2¹⁹ = 64742129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65266457) 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, 1919584 + ... + 1919617.

It is an arithmetic number, because the mean of its divisors is an integer number (17276409).

Almost surely, 2^65266417 is an apocalyptic number.

It is an amenable number.

65266417 is a deficient number, since it is larger than the sum of its proper divisors (3839219).

65266417 is a wasteful number, since it uses less digits than its factorization.

65266417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839218.

The product of its digits is 60480, while the sum is 37.

The square root of 65266417 is about 8078.7633335802. The cubic root of 65266417 is about 402.6211550971.

The spelling of 65266417 in words is "sixty-five million, two hundred sixty-six thousand, four hundred seventeen".