65055570 has 16 divisors (see below), whose sum is σ = 156133440. Its totient is φ = 17348144.

The previous prime is 65055559. The next prime is 65055587. The reversal of 65055570 is 7555056.

65055570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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, 1084230 + ... + 1084289.

It is an arithmetic number, because the mean of its divisors is an integer number (9758340).

Almost surely, 2^65055570 is an apocalyptic number.

65055570 is an abundant number, since it is smaller than the sum of its proper divisors (91077870).

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

65055570 is a wasteful number, since it uses less digits than its factorization.

65055570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168529.

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 65055570 is about 8065.7033171324. The cubic root of 65055570 is about 402.1871235965.

The spelling of 65055570 in words is "sixty-five million, fifty-five thousand, five hundred seventy".