4025564171 has 4 divisors (see below), whose sum is σ = 4065421344. Its totient is φ = 3985707000.

The previous prime is 4025564099. The next prime is 4025564189. The reversal of 4025564171 is 1714655204.

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

It is a cyclic number.

It is not a de Polignac number, because 4025564171 - 2¹⁸ = 4025302027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4025564071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19928435 + ... + 19928636.

It is an arithmetic number, because the mean of its divisors is an integer number (1016355336).

Almost surely, 2^4025564171 is an apocalyptic number.

4025564171 is a deficient number, since it is larger than the sum of its proper divisors (39857173).

4025564171 is a wasteful number, since it uses less digits than its factorization.

4025564171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39857172.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 4025564171 is about 63447.3338368130. Note that the first 3 decimals coincide. The cubic root of 4025564171 is about 1590.7755892033.

The spelling of 4025564171 in words is "four billion, twenty-five million, five hundred sixty-four thousand, one hundred seventy-one".