65605256 has 16 divisors (see below), whose sum is σ = 125027340. Its totient is φ = 32264640.

The previous prime is 65605237. The next prime is 65605259. The reversal of 65605256 is 65250656.

It can be written as a sum of positive squares in 2 ways, for example, as 62948356 + 2656900 = 7934^2 + 1630^2 .

It is a super-2 number, since 2×65605256² = 8608099229651072, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (65605259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66731 + ... + 67706.

Almost surely, 2^65605256 is an apocalyptic number.

It is an amenable number.

65605256 is a deficient number, since it is larger than the sum of its proper divisors (59422084).

65605256 is a wasteful number, since it uses less digits than its factorization.

65605256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134504 (or 134500 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 65605256 is about 8099.7071552001. The cubic root of 65605256 is about 403.3167059754.

The spelling of 65605256 in words is "sixty-five million, six hundred five thousand, two hundred fifty-six".