50611212 has 72 divisors (see below), whose sum is σ = 136987760. Its totient is φ = 15707520.

The previous prime is 50611181. The next prime is 50611217. The reversal of 50611212 is 21211605.

50611212 is a `hidden beast` number, since 50 + 611 + 2 + 1 + 2 = 666.

It is a super-2 number, since 2×50611212² = 5122989560217888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (50611217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41118 + ... + 42330.

Almost surely, 2^50611212 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 50611212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68493880).

50611212 is an abundant number, since it is smaller than the sum of its proper divisors (86376548).

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

50611212 is a wasteful number, since it uses less digits than its factorization.

50611212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 50611212 is about 7114.1557475220. The cubic root of 50611212 is about 369.8982237722.

Adding to 50611212 its reverse (21211605), we get a palindrome (71822817).

The spelling of 50611212 in words is "fifty million, six hundred eleven thousand, two hundred twelve".