551438383627 has 2 divisors, whose sum is σ = 551438383628. Its totient is φ = 551438383626.

The previous prime is 551438383577. The next prime is 551438383669. The reversal of 551438383627 is 726383834155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551438383627 is a prime.

It is not a weakly prime, because it can be changed into another prime (551438383127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275719191813 + 275719191814.

It is an arithmetic number, because the mean of its divisors is an integer number (275719191814).

Almost surely, 2^551438383627 is an apocalyptic number.

551438383627 is a deficient number, since it is larger than the sum of its proper divisors (1).

551438383627 is an equidigital number, since it uses as much as digits as its factorization.

551438383627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 55.

The spelling of 551438383627 in words is "five hundred fifty-one billion, four hundred thirty-eight million, three hundred eighty-three thousand, six hundred twenty-seven".