551242211 has 4 divisors (see below), whose sum is σ = 593645472. Its totient is φ = 508838952.

The previous prime is 551242207. The next prime is 551242271. The reversal of 551242211 is 112242155.

551242211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112242155 = 5 ⋅22448431.

It is a cyclic number.

It is not a de Polignac number, because 551242211 - 2² = 551242207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551242271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21201611 + ... + 21201636.

It is an arithmetic number, because the mean of its divisors is an integer number (148411368).

Almost surely, 2^551242211 is an apocalyptic number.

551242211 is a deficient number, since it is larger than the sum of its proper divisors (42403261).

551242211 is a wasteful number, since it uses less digits than its factorization.

551242211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42403260.

The product of its digits is 800, while the sum is 23.

The square root of 551242211 is about 23478.5478895097. The cubic root of 551242211 is about 819.9376370380.

Adding to 551242211 its reverse (112242155), we get a palindrome (663484366).

The spelling of 551242211 in words is "five hundred fifty-one million, two hundred forty-two thousand, two hundred eleven".