851020050 has 48 divisors (see below), whose sum is σ = 2114632512. Its totient is φ = 226497600.

The previous prime is 851020039. The next prime is 851020069. The reversal of 851020050 is 50020158.

It is a junction number, because it is equal to n+sod(n) for n = 851019999 and 851020026.

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 23 ways as a sum of consecutive naturals, for example, 75907 + ... + 86393.

It is an arithmetic number, because the mean of its divisors is an integer number (44054844).

Almost surely, 2^851020050 is an apocalyptic number.

851020050 is an abundant number, since it is smaller than the sum of its proper divisors (1263612462).

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

851020050 is a wasteful number, since it uses less digits than its factorization.

851020050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11043 (or 11038 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 851020050 is about 29172.2479421796. The cubic root of 851020050 is about 947.6470115779.

The spelling of 851020050 in words is "eight hundred fifty-one million, twenty thousand, fifty".