65513361 has 16 divisors (see below), whose sum is σ = 91336320. Its totient is φ = 41690880.

The previous prime is 65513321. The next prime is 65513369. The reversal of 65513361 is 16331556.

It is not a de Polignac number, because 65513361 - 2⁶ = 65513297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65513369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64425 + ... + 65433.

It is an arithmetic number, because the mean of its divisors is an integer number (5708520).

Almost surely, 2^65513361 is an apocalyptic number.

It is an amenable number.

65513361 is a deficient number, since it is larger than the sum of its proper divisors (25822959).

65513361 is a wasteful number, since it uses less digits than its factorization.

65513361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976.

The product of its digits is 8100, while the sum is 30.

The square root of 65513361 is about 8094.0324313657. The cubic root of 65513361 is about 403.1283058920.

The spelling of 65513361 in words is "sixty-five million, five hundred thirteen thousand, three hundred sixty-one".