65540422 has 8 divisors (see below), whose sum is σ = 99657576. Its totient is φ = 32321232.

The previous prime is 65540411. The next prime is 65540429. The reversal of 65540422 is 22404556.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65540429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224308 + ... + 224599.

It is an arithmetic number, because the mean of its divisors is an integer number (12457197).

Almost surely, 2^65540422 is an apocalyptic number.

65540422 is a deficient number, since it is larger than the sum of its proper divisors (34117154).

65540422 is a wasteful number, since it uses less digits than its factorization.

65540422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448982.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 65540422 is about 8095.7039224517. The cubic root of 65540422 is about 403.1838037489.

Adding to 65540422 its reverse (22404556), we get a palindrome (87944978).

The spelling of 65540422 in words is "sixty-five million, five hundred forty thousand, four hundred twenty-two".