65203413 has 32 divisors (see below), whose sum is σ = 99643392. Its totient is φ = 37540800.

The previous prime is 65203403. The next prime is 65203427. The reversal of 65203413 is 31430256.

It is a happy number.

It is not a de Polignac number, because 65203413 - 2⁶ = 65203349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65203403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205531 + ... + 205847.

It is an arithmetic number, because the mean of its divisors is an integer number (3113856).

Almost surely, 2^65203413 is an apocalyptic number.

It is an amenable number.

65203413 is a deficient number, since it is larger than the sum of its proper divisors (34439979).

65203413 is a wasteful number, since it uses less digits than its factorization.

65203413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65203413 is about 8074.8630328941. The cubic root of 65203413 is about 402.4915585334.

Adding to 65203413 its reverse (31430256), we get a palindrome (96633669).

The spelling of 65203413 in words is "sixty-five million, two hundred three thousand, four hundred thirteen".