65915385 has 16 divisors (see below), whose sum is σ = 107709696. Its totient is φ = 34406528.

The previous prime is 65915383. The next prime is 65915387. The reversal of 65915385 is 58351956.

It is an interprime number because it is at equal distance from previous prime (65915383) and next prime (65915387).

It is a cyclic number.

It is not a de Polignac number, because 65915385 - 2¹ = 65915383 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65915383) 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, 46044 + ... + 47453.

It is an arithmetic number, because the mean of its divisors is an integer number (6731856).

Almost surely, 2^65915385 is an apocalyptic number.

It is an amenable number.

65915385 is a deficient number, since it is larger than the sum of its proper divisors (41794311).

65915385 is a wasteful number, since it uses less digits than its factorization.

65915385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93552.

The product of its digits is 162000, while the sum is 42.

The square root of 65915385 is about 8118.8290411857. The cubic root of 65915385 is about 403.9512264258.

The spelling of 65915385 in words is "sixty-five million, nine hundred fifteen thousand, three hundred eighty-five".