858554852 has 24 divisors (see below), whose sum is σ = 1522737216. Its totient is φ = 423518688.

The previous prime is 858554803. The next prime is 858554861. The reversal of 858554852 is 258455858.

It is a self number, because there is not a number n which added to its sum of digits gives 858554852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110363 + ... + 117885.

It is an arithmetic number, because the mean of its divisors is an integer number (63447384).

Almost surely, 2^858554852 is an apocalyptic number.

It is an amenable number.

858554852 is a deficient number, since it is larger than the sum of its proper divisors (664182364).

858554852 is a wasteful number, since it uses less digits than its factorization.

858554852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907 (or 7905 counting only the distinct ones).

The product of its digits is 2560000, while the sum is 50.

The square root of 858554852 is about 29301.1066685202. The cubic root of 858554852 is about 950.4355720062.

The spelling of 858554852 in words is "eight hundred fifty-eight million, five hundred fifty-four thousand, eight hundred fifty-two".