2065571201 has 4 divisors (see below), whose sum is σ = 2076056532. Its totient is φ = 2055085872.

The previous prime is 2065571191. The next prime is 2065571231. The reversal of 2065571201 is 1021755602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 910590976 + 1154980225 = 30176^2 + 33985^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065571201 - 2²² = 2061376897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2065571231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5242370 + ... + 5242763.

It is an arithmetic number, because the mean of its divisors is an integer number (519014133).

Almost surely, 2^2065571201 is an apocalyptic number.

It is an amenable number.

2065571201 is a deficient number, since it is larger than the sum of its proper divisors (10485331).

2065571201 is a wasteful number, since it uses less digits than its factorization.

2065571201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10485330.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 2065571201 is about 45448.5555436034. Note that the first 4 decimals coincide. The cubic root of 2065571201 is about 1273.5423456424.

The spelling of 2065571201 in words is "two billion, sixty-five million, five hundred seventy-one thousand, two hundred one".