65249659 has 4 divisors (see below), whose sum is σ = 65747880. Its totient is φ = 64751440.

The previous prime is 65249651. The next prime is 65249741. The reversal of 65249659 is 95694256.

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 65249659 - 2³ = 65249651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65249651) 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, 248914 + ... + 249175.

It is an arithmetic number, because the mean of its divisors is an integer number (16436970).

Almost surely, 2^65249659 is an apocalyptic number.

65249659 is a deficient number, since it is larger than the sum of its proper divisors (498221).

65249659 is a wasteful number, since it uses less digits than its factorization.

65249659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498220.

The product of its digits is 583200, while the sum is 46.

The square root of 65249659 is about 8077.7261033041. The cubic root of 65249659 is about 402.5866927443.

The spelling of 65249659 in words is "sixty-five million, two hundred forty-nine thousand, six hundred fifty-nine".