55377895589 has 2 divisors, whose sum is σ = 55377895590. Its totient is φ = 55377895588.

The previous prime is 55377895583. The next prime is 55377895619. The reversal of 55377895589 is 98559877355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31547798689 + 23830096900 = 177617^2 + 154370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55377895589 is a prime.

It is a super-2 number, since 2×55377895589² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55377895583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27688947794 + 27688947795.

It is an arithmetic number, because the mean of its divisors is an integer number (27688947795).

Almost surely, 2^55377895589 is an apocalyptic number.

It is an amenable number.

55377895589 is a deficient number, since it is larger than the sum of its proper divisors (1).

55377895589 is an equidigital number, since it uses as much as digits as its factorization.

55377895589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280000, while the sum is 71.

The spelling of 55377895589 in words is "fifty-five billion, three hundred seventy-seven million, eight hundred ninety-five thousand, five hundred eighty-nine".