551212 has 6 divisors (see below), whose sum is σ = 964628. Its totient is φ = 275604.

The previous prime is 551207. The next prime is 551219. The reversal of 551212 is 212155.

It is not an unprimeable number, because it can be changed into a prime (551219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68898 + ... + 68905.

2⁵⁵¹²¹² is an apocalyptic number.

It is an amenable number.

551212 is a deficient number, since it is larger than the sum of its proper divisors (413416).

551212 is a wasteful number, since it uses less digits than its factorization.

551212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137807 (or 137805 counting only the distinct ones).

The product of its digits is 100, while the sum is 16.

The square root of 551212 is about 742.4365292737. The cubic root of 551212 is about 81.9922657786.

Adding to 551212 its reverse (212155), we get a palindrome (763367).

The spelling of 551212 in words is "five hundred fifty-one thousand, two hundred twelve".