65000056 has 32 divisors (see below), whose sum is σ = 137249280. Its totient is φ = 28591200.

The previous prime is 65000051. The next prime is 65000057.

65000056 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9186 + ... + 14641.

It is an arithmetic number, because the mean of its divisors is an integer number (4289040).

Almost surely, 2^65000056 is an apocalyptic number.

It is an amenable number.

65000056 is an abundant number, since it is smaller than the sum of its proper divisors (72249224).

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

65000056 is a wasteful number, since it uses less digits than its factorization.

65000056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23875 (or 23871 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 65000056 is about 8062.2612212704. The cubic root of 65000056 is about 402.0726913259.

It can be divided in two parts, 650000 and 56, that added together give a palindrome (650056).

The spelling of 65000056 in words is "sixty-five million, fifty-six", and thus it is an aban number and an uban number.