551622523 has 2 divisors, whose sum is σ = 551622524. Its totient is φ = 551622522.

The previous prime is 551622521. The next prime is 551622541. The reversal of 551622523 is 325226155.

It is a happy number.

551622523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551622523 - 2¹ = 551622521 is a prime.

Together with 551622521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (551622521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275811261 + 275811262.

It is an arithmetic number, because the mean of its divisors is an integer number (275811262).

Almost surely, 2^551622523 is an apocalyptic number.

551622523 is a deficient number, since it is larger than the sum of its proper divisors (1).

551622523 is an equidigital number, since it uses as much as digits as its factorization.

551622523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 31.

The square root of 551622523 is about 23486.6456310815. The cubic root of 551622523 is about 820.1261569729.

Adding to 551622523 its reverse (325226155), we get a palindrome (876848678).

The spelling of 551622523 in words is "five hundred fifty-one million, six hundred twenty-two thousand, five hundred twenty-three".