55377653020357 has 2 divisors, whose sum is σ = 55377653020358. Its totient is φ = 55377653020356.

The previous prime is 55377653020289. The next prime is 55377653020387. The reversal of 55377653020357 is 75302035677355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32792641908196 + 22585011112161 = 5726486^2 + 4752369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55377653020357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55377653020387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27688826510178 + 27688826510179.

It is an arithmetic number, because the mean of its divisors is an integer number (27688826510179).

Almost surely, 2^{55377653020357} is an apocalyptic number.

It is an amenable number.

55377653020357 is a deficient number, since it is larger than the sum of its proper divisors (1).

55377653020357 is an equidigital number, since it uses as much as digits as its factorization.

55377653020357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69457500, while the sum is 58.

The spelling of 55377653020357 in words is "fifty-five trillion, three hundred seventy-seven billion, six hundred fifty-three million, twenty thousand, three hundred fifty-seven".