5505105057421 has 2 divisors, whose sum is σ = 5505105057422. Its totient is φ = 5505105057420.

The previous prime is 5505105057391. The next prime is 5505105057427. The reversal of 5505105057421 is 1247505015055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5440696200900 + 64408856521 = 2332530^2 + 253789^2 .

It is a cyclic number.

It is not a de Polignac number, because 5505105057421 - 2⁷ = 5505105057293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5505105057427) 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, 2752552528710 + 2752552528711.

It is an arithmetic number, because the mean of its divisors is an integer number (2752552528711).

Almost surely, 2^{5505105057421} is an apocalyptic number.

It is an amenable number.

5505105057421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5505105057421 is an equidigital number, since it uses as much as digits as its factorization.

5505105057421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 175000, while the sum is 40.

The spelling of 5505105057421 in words is "five trillion, five hundred five billion, one hundred five million, fifty-seven thousand, four hundred twenty-one".