65581082 has 16 divisors (see below), whose sum is σ = 112600320. Its totient is φ = 28062288.

The previous prime is 65581081. The next prime is 65581111. The reversal of 65581082 is 28018556.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (65581081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6623 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (7037520).

Almost surely, 2^65581082 is an apocalyptic number.

65581082 is a deficient number, since it is larger than the sum of its proper divisors (47019238).

65581082 is a wasteful number, since it uses less digits than its factorization.

65581082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 65581082 is about 8098.2147415341. The cubic root of 65581082 is about 403.2671623036.

The spelling of 65581082 in words is "sixty-five million, five hundred eighty-one thousand, eighty-two".