805555252 has 6 divisors (see below), whose sum is σ = 1409721698. Its totient is φ = 402777624.

The previous prime is 805555241. The next prime is 805555313. The reversal of 805555252 is 252555508.

It can be written as a sum of positive squares in only one way, i.e., 733543056 + 72012196 = 27084^2 + 8486^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100694403 + ... + 100694410.

Almost surely, 2^805555252 is an apocalyptic number.

It is an amenable number.

805555252 is a deficient number, since it is larger than the sum of its proper divisors (604166446).

805555252 is a wasteful number, since it uses less digits than its factorization.

805555252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201388817 (or 201388815 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 37.

The square root of 805555252 is about 28382.3052622580. The cubic root of 805555252 is about 930.4615784018.

The spelling of 805555252 in words is "eight hundred five million, five hundred fifty-five thousand, two hundred fifty-two".