65503401 has 8 divisors (see below), whose sum is σ = 87394560. Its totient is φ = 43640592.

The previous prime is 65503391. The next prime is 65503409. The reversal of 65503401 is 10430556.

65503401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 65503401 - 2⁶ = 65503337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65503409) 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, 930 + ... + 11483.

It is an arithmetic number, because the mean of its divisors is an integer number (10924320).

Almost surely, 2^65503401 is an apocalyptic number.

It is an amenable number.

65503401 is a deficient number, since it is larger than the sum of its proper divisors (21891159).

65503401 is a wasteful number, since it uses less digits than its factorization.

65503401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14175.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65503401 is about 8093.4171398736. The cubic root of 65503401 is about 403.1078756502.

Adding to 65503401 its reverse (10430556), we get a palindrome (75933957).

The spelling of 65503401 in words is "sixty-five million, five hundred three thousand, four hundred one".