551755826543 has 4 divisors (see below), whose sum is σ = 551760382368. Its totient is φ = 551751270720.

The previous prime is 551755826539. The next prime is 551755826579. The reversal of 551755826543 is 345628557155.

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 551755826543 - 2² = 551755826539 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 (551755829543) 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, 2091143 + ... + 2340168.

It is an arithmetic number, because the mean of its divisors is an integer number (137940095592).

Almost surely, 2^551755826543 is an apocalyptic number.

551755826543 is a deficient number, since it is larger than the sum of its proper divisors (4555825).

551755826543 is a wasteful number, since it uses less digits than its factorization.

551755826543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555824.

The product of its digits is 25200000, while the sum is 56.

The spelling of 551755826543 in words is "five hundred fifty-one billion, seven hundred fifty-five million, eight hundred twenty-six thousand, five hundred forty-three".