2055220054397 has 2 divisors, whose sum is σ = 2055220054398. Its totient is φ = 2055220054396.

The previous prime is 2055220054357. The next prime is 2055220054439. The reversal of 2055220054397 is 7934500225502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1597749088441 + 457470965956 = 1264021^2 + 676366^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055220054397 - 2⁶ = 2055220054333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2055220054357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027610027198 + 1027610027199.

It is an arithmetic number, because the mean of its divisors is an integer number (1027610027199).

Almost surely, 2^{2055220054397} is an apocalyptic number.

It is an amenable number.

2055220054397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055220054397 is an equidigital number, since it uses as much as digits as its factorization.

2055220054397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 44.

Adding to 2055220054397 its reverse (7934500225502), we get a palindrome (9989720279899).

The spelling of 2055220054397 in words is "two trillion, fifty-five billion, two hundred twenty million, fifty-four thousand, three hundred ninety-seven".