551444242399 has 2 divisors, whose sum is σ = 551444242400. Its totient is φ = 551444242398.

The previous prime is 551444242369. The next prime is 551444242403. The reversal of 551444242399 is 993242444155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551444242399 - 2¹⁷ = 551444111327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551444242309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275722121199 + 275722121200.

It is an arithmetic number, because the mean of its divisors is an integer number (275722121200).

Almost surely, 2^551444242399 is an apocalyptic number.

551444242399 is a deficient number, since it is larger than the sum of its proper divisors (1).

551444242399 is an equidigital number, since it uses as much as digits as its factorization.

551444242399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 52.

The spelling of 551444242399 in words is "five hundred fifty-one billion, four hundred forty-four million, two hundred forty-two thousand, three hundred ninety-nine".