65057513 has 8 divisors (see below), whose sum is σ = 66193920. Its totient is φ = 63927360.

The previous prime is 65057497. The next prime is 65057533. The reversal of 65057513 is 31575056.

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

It is a cyclic number.

It is not a de Polignac number, because 65057513 - 2⁴ = 65057497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65057513.

It is not an unprimeable number, because it can be changed into a prime (65057533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22568 + ... + 25286.

It is an arithmetic number, because the mean of its divisors is an integer number (8274240).

Almost surely, 2^65057513 is an apocalyptic number.

It is an amenable number.

65057513 is a deficient number, since it is larger than the sum of its proper divisors (1136407).

65057513 is a wasteful number, since it uses less digits than its factorization.

65057513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 65057513 is about 8065.8237645017. The cubic root of 65057513 is about 402.1911275673.

The spelling of 65057513 in words is "sixty-five million, fifty-seven thousand, five hundred thirteen".