8233221725 has 24 divisors (see below), whose sum is σ = 10269236328. Its totient is φ = 6547968000.

The previous prime is 8233221709. The next prime is 8233221761. The reversal of 8233221725 is 5271223328.

It can be written as a sum of positive squares in 12 ways, for example, as 13623481 + 8219598244 = 3691^2 + 90662^2 .

It is not a de Polignac number, because 8233221725 - 2⁴ = 8233221709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3377207 + ... + 3379643.

It is an arithmetic number, because the mean of its divisors is an integer number (427884847).

Almost surely, 2^8233221725 is an apocalyptic number.

It is an amenable number.

8233221725 is a deficient number, since it is larger than the sum of its proper divisors (2036014603).

8233221725 is a wasteful number, since it uses less digits than its factorization.

8233221725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185 (or 3180 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 8233221725 is about 90737.1022515046. The cubic root of 8233221725 is about 2019.2492819448.

The spelling of 8233221725 in words is "eight billion, two hundred thirty-three million, two hundred twenty-one thousand, seven hundred twenty-five".