65211513 has 8 divisors (see below), whose sum is σ = 88798848. Its totient is φ = 42549264.

The previous prime is 65211499. The next prime is 65211527. The reversal of 65211513 is 31511256.

It is an interprime number because it is at equal distance from previous prime (65211499) and next prime (65211527).

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

It is not a de Polignac number, because 65211513 - 2¹⁴ = 65195129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65211533) 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, 231106 + ... + 231387.

It is an arithmetic number, because the mean of its divisors is an integer number (11099856).

Almost surely, 2^65211513 is an apocalyptic number.

It is an amenable number.

65211513 is a deficient number, since it is larger than the sum of its proper divisors (23587335).

65211513 is a wasteful number, since it uses less digits than its factorization.

65211513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462543.

The product of its digits is 900, while the sum is 24.

The square root of 65211513 is about 8075.3645738134. The cubic root of 65211513 is about 402.5082245661.

Adding to 65211513 its reverse (31511256), we get a palindrome (96722769).

The spelling of 65211513 in words is "sixty-five million, two hundred eleven thousand, five hundred thirteen".