555055005391 has 2 divisors, whose sum is σ = 555055005392. Its totient is φ = 555055005390.

The previous prime is 555055005343. The next prime is 555055005397. The reversal of 555055005391 is 193500550555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555055005391 - 2¹³ = 555054997199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555055005397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277527502695 + 277527502696.

It is an arithmetic number, because the mean of its divisors is an integer number (277527502696).

Almost surely, 2^555055005391 is an apocalyptic number.

555055005391 is a deficient number, since it is larger than the sum of its proper divisors (1).

555055005391 is an equidigital number, since it uses as much as digits as its factorization.

555055005391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 421875, while the sum is 43.

The spelling of 555055005391 in words is "five hundred fifty-five billion, fifty-five million, five thousand, three hundred ninety-one".