866233125 has 30 divisors (see below), whose sum is σ = 1563541694. Its totient is φ = 461988000.

The previous prime is 866233099. The next prime is 866233133. The reversal of 866233125 is 521332668.

It is a happy number.

866233125 is a `hidden beast` number, since 8 + 6 + 623 + 3 + 1 + 25 = 666.

866233125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 218123361 + 648109764 = 14769^2 + 25458^2 .

It is not a de Polignac number, because 866233125 - 2¹² = 866229029 is a prime.

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 866233125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 71374 + ... + 82623.

Almost surely, 2^866233125 is an apocalyptic number.

It is an amenable number.

866233125 is a deficient number, since it is larger than the sum of its proper divisors (697308569).

866233125 is a wasteful number, since it uses less digits than its factorization.

866233125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154023 (or 154005 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 866233125 is about 29431.8386275815. The cubic root of 866233125 is about 953.2604958316.

The spelling of 866233125 in words is "eight hundred sixty-six million, two hundred thirty-three thousand, one hundred twenty-five".