55538186677 has 2 divisors, whose sum is σ = 55538186678. Its totient is φ = 55538186676.

The previous prime is 55538186647. The next prime is 55538186707. The reversal of 55538186677 is 77668183555.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55538186647) and next prime (55538186707).

It can be written as a sum of positive squares in only one way, i.e., 53580212676 + 1957974001 = 231474^2 + 44249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55538186677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55538186647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27769093338 + 27769093339.

It is an arithmetic number, because the mean of its divisors is an integer number (27769093339).

Almost surely, 2^55538186677 is an apocalyptic number.

It is an amenable number.

55538186677 is a deficient number, since it is larger than the sum of its proper divisors (1).

55538186677 is an equidigital number, since it uses as much as digits as its factorization.

55538186677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336000, while the sum is 61.

The spelling of 55538186677 in words is "fifty-five billion, five hundred thirty-eight million, one hundred eighty-six thousand, six hundred seventy-seven".