55577861063 has 2 divisors, whose sum is σ = 55577861064. Its totient is φ = 55577861062.

The previous prime is 55577861041. The next prime is 55577861083. The reversal of 55577861063 is 36016877555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55577861063 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 55577860996 and 55577861014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55577861033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27788930531 + 27788930532.

It is an arithmetic number, because the mean of its divisors is an integer number (27788930532).

Almost surely, 2^55577861063 is an apocalyptic number.

55577861063 is a deficient number, since it is larger than the sum of its proper divisors (1).

55577861063 is an equidigital number, since it uses as much as digits as its factorization.

55577861063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292000, while the sum is 53.

The spelling of 55577861063 in words is "fifty-five billion, five hundred seventy-seven million, eight hundred sixty-one thousand, sixty-three".