551287103 has 2 divisors, whose sum is σ = 551287104. Its totient is φ = 551287102.

The previous prime is 551287081. The next prime is 551287117. The reversal of 551287103 is 301782155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551287103 - 2⁸ = 551286847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551287103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551287123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275643551 + 275643552.

It is an arithmetic number, because the mean of its divisors is an integer number (275643552).

Almost surely, 2^551287103 is an apocalyptic number.

551287103 is a deficient number, since it is larger than the sum of its proper divisors (1).

551287103 is an equidigital number, since it uses as much as digits as its factorization.

551287103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 551287103 is about 23479.5038916924. The cubic root of 551287103 is about 819.9598944295.

The spelling of 551287103 in words is "five hundred fifty-one million, two hundred eighty-seven thousand, one hundred three".