4225193281 has 4 divisors (see below), whose sum is σ = 4339387732. Its totient is φ = 4110998832.

The previous prime is 4225193257. The next prime is 4225193293. The reversal of 4225193281 is 1823915224.

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 3049800625 + 1175392656 = 55225^2 + 34284^2 .

It is a cyclic number.

It is not a de Polignac number, because 4225193281 - 2¹⁹ = 4224668993 is a prime.

It is a super-2 number, since 2×4225193281² = 35704516523615089922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 114194413 = 4225193281 / (4 + 2 + 2 + 5 + 1 + 9 + 3 + 2 + 8 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4225193281.

It is not an unprimeable number, because it can be changed into a prime (4225197281) 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, 57097170 + ... + 57097243.

It is an arithmetic number, because the mean of its divisors is an integer number (1084846933).

Almost surely, 2^4225193281 is an apocalyptic number.

It is an amenable number.

4225193281 is a deficient number, since it is larger than the sum of its proper divisors (114194451).

4225193281 is a wasteful number, since it uses less digits than its factorization.

4225193281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114194450.

The product of its digits is 34560, while the sum is 37.

The square root of 4225193281 is about 65001.4867599196. The cubic root of 4225193281 is about 1616.6482140854.

It can be divided in two parts, 4225 and 193281, that added together give a triangular number (197506 = T₆₂₈).

The spelling of 4225193281 in words is "four billion, two hundred twenty-five million, one hundred ninety-three thousand, two hundred eighty-one".