4225861 has 4 divisors (see below), whose sum is σ = 4263372. Its totient is φ = 4188352.

The previous prime is 4225853. The next prime is 4225873. The reversal of 4225861 is 1685224.

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 481636 + 3744225 = 694^2 + 1935^2 .

It is a cyclic number.

It is not a de Polignac number, because 4225861 - 2³ = 4225853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4225811) 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, 18586 + ... + 18811.

It is an arithmetic number, because the mean of its divisors is an integer number (1065843).

Almost surely, 2^4225861 is an apocalyptic number.

It is an amenable number.

4225861 is a deficient number, since it is larger than the sum of its proper divisors (37511).

4225861 is a wasteful number, since it uses less digits than its factorization.

4225861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37510.

The product of its digits is 3840, while the sum is 28.

The square root of 4225861 is about 2055.6899085222. The cubic root of 4225861 is about 161.6733370732.

The spelling of 4225861 in words is "four million, two hundred twenty-five thousand, eight hundred sixty-one".