65560890 has 16 divisors (see below), whose sum is σ = 157346208. Its totient is φ = 17482896.

The previous prime is 65560889. The next prime is 65560897. The reversal of 65560890 is 9806556.

65560890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65560897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092652 + ... + 1092711.

It is an arithmetic number, because the mean of its divisors is an integer number (9834138).

Almost surely, 2^65560890 is an apocalyptic number.

65560890 is an abundant number, since it is smaller than the sum of its proper divisors (91785318).

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

65560890 is a wasteful number, since it uses less digits than its factorization.

65560890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185373.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 65560890 is about 8096.9679510296. The cubic root of 65560890 is about 403.2257702531.

The spelling of 65560890 in words is "sixty-five million, five hundred sixty thousand, eight hundred ninety".