65650633 has 4 divisors (see below), whose sum is σ = 65845780. Its totient is φ = 65455488.

The previous prime is 65650631. The next prime is 65650639. The reversal of 65650633 is 33605656.

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 23309584 + 42341049 = 4828^2 + 6507^2 .

It is a cyclic number.

It is not a de Polignac number, because 65650633 - 2¹ = 65650631 is a prime.

It is a super-2 number, since 2×65650633² = 8620011226601378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65650631) 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, 97068 + ... + 97741.

It is an arithmetic number, because the mean of its divisors is an integer number (16461445).

Almost surely, 2^65650633 is an apocalyptic number.

It is an amenable number.

65650633 is a deficient number, since it is larger than the sum of its proper divisors (195147).

65650633 is a wasteful number, since it uses less digits than its factorization.

65650633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195146.

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 65650633 is about 8102.5078216562. The cubic root of 65650633 is about 403.4096715163.

The spelling of 65650633 in words is "sixty-five million, six hundred fifty thousand, six hundred thirty-three".