551766323 has 4 divisors (see below), whose sum is σ = 563506080. Its totient is φ = 540026568.

The previous prime is 551766317. The next prime is 551766337. The reversal of 551766323 is 323667155.

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 551766323 - 2⁴ = 551766307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551736323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5869808 + ... + 5869901.

It is an arithmetic number, because the mean of its divisors is an integer number (140876520).

Almost surely, 2^551766323 is an apocalyptic number.

551766323 is a deficient number, since it is larger than the sum of its proper divisors (11739757).

551766323 is a wasteful number, since it uses less digits than its factorization.

551766323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11739756.

The product of its digits is 113400, while the sum is 38.

The square root of 551766323 is about 23489.7067457216. The cubic root of 551766323 is about 820.1974157836.

The spelling of 551766323 in words is "five hundred fifty-one million, seven hundred sixty-six thousand, three hundred twenty-three".