55964776187 has 2 divisors, whose sum is σ = 55964776188. Its totient is φ = 55964776186.

The previous prime is 55964776139. The next prime is 55964776229. The reversal of 55964776187 is 78167746955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55964776187 - 2¹⁴ = 55964759803 is a prime.

It is a super-2 number, since 2×55964776187² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55964776787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27982388093 + 27982388094.

It is an arithmetic number, because the mean of its divisors is an integer number (27982388094).

Almost surely, 2^55964776187 is an apocalyptic number.

55964776187 is a deficient number, since it is larger than the sum of its proper divisors (1).

55964776187 is an equidigital number, since it uses as much as digits as its factorization.

55964776187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88905600, while the sum is 65.

The spelling of 55964776187 in words is "fifty-five billion, nine hundred sixty-four million, seven hundred seventy-six thousand, one hundred eighty-seven".