65939265 has 48 divisors (see below), whose sum is σ = 135477888. Its totient is φ = 30139776.

The previous prime is 65939239. The next prime is 65939273. The reversal of 65939265 is 56293956.

It is a Cunningham number, because it is equal to 404³+1.

It is not a de Polignac number, because 65939265 - 2¹⁰ = 65938241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65939265.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4629 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (2822456).

Almost surely, 2^65939265 is an apocalyptic number.

It is an amenable number.

65939265 is an abundant number, since it is smaller than the sum of its proper divisors (69538623).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65939265 is an equidigital number, since it uses as much as digits as its factorization.

65939265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780 (or 7768 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 65939265 is about 8120.2995634398. The cubic root of 65939265 is about 404.0000020423. Note that the first 5 decimals are identical.

The spelling of 65939265 in words is "sixty-five million, nine hundred thirty-nine thousand, two hundred sixty-five".