65099056 has 40 divisors (see below), whose sum is σ = 138187584. Its totient is φ = 29463360.

The previous prime is 65098981. The next prime is 65099063.

65099056 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65099056² = 8475774184182272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49155 + ... + 50461.

Almost surely, 2^65099056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65099056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69093792).

65099056 is an abundant number, since it is smaller than the sum of its proper divisors (73088528).

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

65099056 is a wasteful number, since it uses less digits than its factorization.

65099056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 65099056 is about 8068.3986019532. The cubic root of 65099056 is about 402.2767168155.

The spelling of 65099056 in words is "sixty-five million, ninety-nine thousand, fifty-six".