65515315 has 8 divisors (see below), whose sum is σ = 79120080. Its totient is φ = 52077792.

The previous prime is 65515291. The next prime is 65515337. The reversal of 65515315 is 51351556.

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 65515315 - 2⁵ = 65515283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40945 + ... + 42514.

It is an arithmetic number, because the mean of its divisors is an integer number (9890010).

Almost surely, 2^65515315 is an apocalyptic number.

65515315 is a deficient number, since it is larger than the sum of its proper divisors (13604765).

65515315 is a wasteful number, since it uses less digits than its factorization.

65515315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83621.

The product of its digits is 11250, while the sum is 31.

The square root of 65515315 is about 8094.1531366784. The cubic root of 65515315 is about 403.1323137507.

The spelling of 65515315 in words is "sixty-five million, five hundred fifteen thousand, three hundred fifteen".