855181500 has 192 divisors, whose sum is σ = 2626670592. Its totient is φ = 215904000.

The previous prime is 855181489. The next prime is 855181513. The reversal of 855181500 is 5181558.

855181500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2464327 + ... + 2464673.

It is an arithmetic number, because the mean of its divisors is an integer number (13680576).

Almost surely, 2^855181500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855181500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313335296).

855181500 is an abundant number, since it is smaller than the sum of its proper divisors (1771489092).

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

855181500 is a wasteful number, since it uses less digits than its factorization.

855181500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 33.

The square root of 855181500 is about 29243.4864542517. The cubic root of 855181500 is about 949.1891511457.

The spelling of 855181500 in words is "eight hundred fifty-five million, one hundred eighty-one thousand, five hundred".