812185050 has 24 divisors (see below), whose sum is σ = 2014219296. Its totient is φ = 216582640.

The previous prime is 812185043. The next prime is 812185057. The reversal of 812185050 is 50581218.

It is an interprime number because it is at equal distance from previous prime (812185043) and next prime (812185057).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 812184999 and 812185017.

It is not an unprimeable number, because it can be changed into a prime (812185057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2707134 + ... + 2707433.

It is an arithmetic number, because the mean of its divisors is an integer number (83925804).

Almost surely, 2^812185050 is an apocalyptic number.

812185050 is an abundant number, since it is smaller than the sum of its proper divisors (1202034246).

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

812185050 is a wasteful number, since it uses less digits than its factorization.

812185050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414582 (or 5414577 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 812185050 is about 28498.8605035359. The cubic root of 812185050 is about 933.0072039412.

It can be divided in two parts, 81218 and 5050, that added together give a palindrome (86268).

The spelling of 812185050 in words is "eight hundred twelve million, one hundred eighty-five thousand, fifty".