855445504 has 39 divisors (see below), whose sum is σ = 1714433637. Its totient is φ = 426786816.

The previous prime is 855445501. The next prime is 855445519. The reversal of 855445504 is 405544558.

The square root of 855445504 is 29248.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 739840000 + 115605504 = 27200^2 + 10752^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855445501) by changing a digit.

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 in 2 ways as a sum of consecutive naturals, for example, 1871644 + ... + 1872100.

Almost surely, 2^855445504 is an apocalyptic number.

855445504 is the 29248-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855445504

855445504 is an abundant number, since it is smaller than the sum of its proper divisors (858988133).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855445504 is an frugal number, since it uses more digits than its factorization.

855445504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

The cubic root of 855445504 is about 949.2868161639.

The spelling of 855445504 in words is "eight hundred fifty-five million, four hundred forty-five thousand, five hundred four".