50551212 has 12 divisors (see below), whose sum is σ = 117952856. Its totient is φ = 16850400.

The previous prime is 50551177. The next prime is 50551223. The reversal of 50551212 is 21215505.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106289 + ... + 2106312.

Almost surely, 2^50551212 is an apocalyptic number.

It is an amenable number.

50551212 is an abundant number, since it is smaller than the sum of its proper divisors (67401644).

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

50551212 is a wasteful number, since it uses less digits than its factorization.

50551212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212608 (or 4212606 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 50551212 is about 7109.9375524684. The cubic root of 50551212 is about 369.7519935287.

Adding to 50551212 its reverse (21215505), we get a palindrome (71766717).

The spelling of 50551212 in words is "fifty million, five hundred fifty-one thousand, two hundred twelve".