551200623 has 4 divisors (see below), whose sum is σ = 734934168. Its totient is φ = 367467080.

The previous prime is 551200613. The next prime is 551200649. The reversal of 551200623 is 326002155.

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 551200623 - 2⁵ = 551200591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551200593 and 551200602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551200613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91866768 + ... + 91866773.

It is an arithmetic number, because the mean of its divisors is an integer number (183733542).

Almost surely, 2^551200623 is an apocalyptic number.

551200623 is a deficient number, since it is larger than the sum of its proper divisors (183733545).

551200623 is a wasteful number, since it uses less digits than its factorization.

551200623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183733544.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 551200623 is about 23477.6622132614. The cubic root of 551200623 is about 819.9170166867.

Adding to 551200623 its reverse (326002155), we get a palindrome (877202778).

The spelling of 551200623 in words is "five hundred fifty-one million, two hundred thousand, six hundred twenty-three".