65085500 has 24 divisors (see below), whose sum is σ = 142147824. Its totient is φ = 26034000.

The previous prime is 65085497. The next prime is 65085539. The reversal of 65085500 is 558056.

It is a super-2 number, since 2×65085500² = 8472244620500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64586 + ... + 65585.

It is an arithmetic number, because the mean of its divisors is an integer number (5922826).

Almost surely, 2^65085500 is an apocalyptic number.

It is an amenable number.

65085500 is an abundant number, since it is smaller than the sum of its proper divisors (77062324).

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

65085500 is a wasteful number, since it uses less digits than its factorization.

65085500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130190 (or 130178 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 65085500 is about 8067.5584906463. The cubic root of 65085500 is about 402.2487919777.

The spelling of 65085500 in words is "sixty-five million, eighty-five thousand, five hundred".