65915265 has 16 divisors (see below), whose sum is σ = 113577408. Its totient is φ = 32450496.

The previous prime is 65915261. The next prime is 65915279. The reversal of 65915265 is 56251956.

It is not a de Polignac number, because 65915265 - 2² = 65915261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (65915261) 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, 168819 + ... + 169208.

It is an arithmetic number, because the mean of its divisors is an integer number (7098588).

Almost surely, 2^65915265 is an apocalyptic number.

65915265 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65915265 is a deficient number, since it is larger than the sum of its proper divisors (47662143).

65915265 is a wasteful number, since it uses less digits than its factorization.

65915265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338048.

The product of its digits is 81000, while the sum is 39.

The square root of 65915265 is about 8118.8216509540. The cubic root of 65915265 is about 403.9509812924.

The spelling of 65915265 in words is "sixty-five million, nine hundred fifteen thousand, two hundred sixty-five".