858080550 has 48 divisors (see below), whose sum is σ = 2220572160. Its totient is φ = 218871840.

The previous prime is 858080549. The next prime is 858080557. The reversal of 858080550 is 55080858.

It is a junction number, because it is equal to n+sod(n) for n = 858080499 and 858080508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858080557) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 120910 + ... + 127809.

It is an arithmetic number, because the mean of its divisors is an integer number (46261920).

Almost surely, 2^858080550 is an apocalyptic number.

858080550 is an abundant number, since it is smaller than the sum of its proper divisors (1362491610).

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

858080550 is a wasteful number, since it uses less digits than its factorization.

858080550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248757 (or 248752 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 39.

The square root of 858080550 is about 29293.0119653135. The cubic root of 858080550 is about 950.2605195020.

The spelling of 858080550 in words is "eight hundred fifty-eight million, eighty thousand, five hundred fifty".