65455513 has 4 divisors (see below), whose sum is σ = 68900560. Its totient is φ = 62010468.

The previous prime is 65455487. The next prime is 65455531. The reversal of 65455513 is 31555456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65455513 - 2¹³ = 65447321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65455613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1722495 + ... + 1722532.

It is an arithmetic number, because the mean of its divisors is an integer number (17225140).

Almost surely, 2^65455513 is an apocalyptic number.

It is an amenable number.

65455513 is a deficient number, since it is larger than the sum of its proper divisors (3445047).

65455513 is a wasteful number, since it uses less digits than its factorization.

65455513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445046.

The product of its digits is 45000, while the sum is 34.

The square root of 65455513 is about 8090.4581452474. The cubic root of 65455513 is about 403.0096174641.

The spelling of 65455513 in words is "sixty-five million, four hundred fifty-five thousand, five hundred thirteen".