551554243522 has 16 divisors (see below), whose sum is σ = 876056718240. Its totient is φ = 259537515328.

The previous prime is 551554243451. The next prime is 551554243543. The reversal of 551554243522 is 225342455155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23272 + ... + 1050547.

It is an arithmetic number, because the mean of its divisors is an integer number (54753544890).

Almost surely, 2^551554243522 is an apocalyptic number.

551554243522 is a deficient number, since it is larger than the sum of its proper divisors (324502474718).

551554243522 is a wasteful number, since it uses less digits than its factorization.

551554243522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088945.

The product of its digits is 1200000, while the sum is 43.

Adding to 551554243522 its reverse (225342455155), we get a palindrome (776896698677).

The spelling of 551554243522 in words is "five hundred fifty-one billion, five hundred fifty-four million, two hundred forty-three thousand, five hundred twenty-two".