65625340 has 48 divisors (see below), whose sum is σ = 150976224. Its totient is φ = 23763200.

The previous prime is 65625331. The next prime is 65625341. The reversal of 65625340 is 4352656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65625341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69270 + ... + 70210.

It is an arithmetic number, because the mean of its divisors is an integer number (3145338).

Almost surely, 2^65625340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65625340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75488112).

65625340 is an abundant number, since it is smaller than the sum of its proper divisors (85350884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65625340 is a wasteful number, since it uses less digits than its factorization.

65625340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 65625340 is about 8100.9468582382. The cubic root of 65625340 is about 403.3578580963.

Adding to 65625340 its reverse (4352656), we get a palindrome (69977996).

The spelling of 65625340 in words is "sixty-five million, six hundred twenty-five thousand, three hundred forty".