65649085 has 16 divisors (see below), whose sum is σ = 84101760. Its totient is φ = 49049280.

The previous prime is 65649071. The next prime is 65649097. The reversal of 65649085 is 58094656.

It is a de Polignac number, because none of the positive numbers 2^k-65649085 is a prime.

It is a super-2 number, since 2×65649085² = 8619604722674450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1879 + ... + 11611.

It is an arithmetic number, because the mean of its divisors is an integer number (5256360).

Almost surely, 2^65649085 is an apocalyptic number.

It is an amenable number.

65649085 is a deficient number, since it is larger than the sum of its proper divisors (18452675).

65649085 is a wasteful number, since it uses less digits than its factorization.

65649085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9828.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 65649085 is about 8102.4122951131. The cubic root of 65649085 is about 403.4065007772.

The spelling of 65649085 in words is "sixty-five million, six hundred forty-nine thousand, eighty-five".