4025611 has 4 divisors (see below), whose sum is σ = 4050472. Its totient is φ = 4000752.

The previous prime is 4025599. The next prime is 4025627. The reversal of 4025611 is 1165204.

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 4025611 - 2¹¹ = 4023563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4025111) 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 3 ways as a sum of consecutive naturals, for example, 12186 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (1012618).

Almost surely, 2^4025611 is an apocalyptic number.

4025611 is a deficient number, since it is larger than the sum of its proper divisors (24861).

4025611 is a wasteful number, since it uses less digits than its factorization.

4025611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24860.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 4025611 is about 2006.3925338777. The cubic root of 4025611 is about 159.0781757626.

It can be divided in two parts, 40 and 25611, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 4025611 in words is "four million, twenty-five thousand, six hundred eleven".