65503340 has 24 divisors (see below), whose sum is σ = 157208352. Its totient is φ = 22458240.

The previous prime is 65503337. The next prime is 65503349. The reversal of 65503340 is 4330556.

65503340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65503349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233801 + ... + 234080.

It is an arithmetic number, because the mean of its divisors is an integer number (6550348).

Almost surely, 2^65503340 is an apocalyptic number.

It is an amenable number.

65503340 is an abundant number, since it is smaller than the sum of its proper divisors (91705012).

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

65503340 is a wasteful number, since it uses less digits than its factorization.

65503340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467897 (or 467895 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 65503340 is about 8093.4133713780. The cubic root of 65503340 is about 403.1077505189.

Adding to 65503340 its reverse (4330556), we get a palindrome (69833896).

The spelling of 65503340 in words is "sixty-five million, five hundred three thousand, three hundred forty".