551212562423 has 4 divisors (see below), whose sum is σ = 556670112648. Its totient is φ = 545755012200.

The previous prime is 551212562393. The next prime is 551212562441. The reversal of 551212562423 is 324265212155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551212562423 - 2⁶ = 551212562359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551212564423) 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, 2728774961 + ... + 2728775162.

It is an arithmetic number, because the mean of its divisors is an integer number (139167528162).

Almost surely, 2^551212562423 is an apocalyptic number.

551212562423 is a deficient number, since it is larger than the sum of its proper divisors (5457550225).

551212562423 is a wasteful number, since it uses less digits than its factorization.

551212562423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457550224.

The product of its digits is 144000, while the sum is 38.

Adding to 551212562423 its reverse (324265212155), we get a palindrome (875477774578).

The spelling of 551212562423 in words is "five hundred fifty-one billion, two hundred twelve million, five hundred sixty-two thousand, four hundred twenty-three".