65221298 has 8 divisors (see below), whose sum is σ = 98007408. Its totient is φ = 32552164.

The previous prime is 65221297. The next prime is 65221313. The reversal of 65221298 is 89212256.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65221297) 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, 27836 + ... + 30087.

It is an arithmetic number, because the mean of its divisors is an integer number (12250926).

Almost surely, 2^65221298 is an apocalyptic number.

65221298 is a deficient number, since it is larger than the sum of its proper divisors (32786110).

65221298 is a wasteful number, since it uses less digits than its factorization.

65221298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58488.

The product of its digits is 17280, while the sum is 35.

The square root of 65221298 is about 8075.9704060874. The cubic root of 65221298 is about 402.5283557046.

The spelling of 65221298 in words is "sixty-five million, two hundred twenty-one thousand, two hundred ninety-eight".