55601351389 has 2 divisors, whose sum is σ = 55601351390. Its totient is φ = 55601351388.

The previous prime is 55601351383. The next prime is 55601351431. The reversal of 55601351389 is 98315310655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35703992025 + 19897359364 = 188955^2 + 141058^2 .

It is a cyclic number.

It is not a de Polignac number, because 55601351389 - 2¹¹ = 55601349341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55601351383) 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, 27800675694 + 27800675695.

It is an arithmetic number, because the mean of its divisors is an integer number (27800675695).

Almost surely, 2^55601351389 is an apocalyptic number.

It is an amenable number.

55601351389 is a deficient number, since it is larger than the sum of its proper divisors (1).

55601351389 is an equidigital number, since it uses as much as digits as its factorization.

55601351389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 46.

The spelling of 55601351389 in words is "fifty-five billion, six hundred one million, three hundred fifty-one thousand, three hundred eighty-nine".