55971223027 has 2 divisors, whose sum is σ = 55971223028. Its totient is φ = 55971223026.

The previous prime is 55971222971. The next prime is 55971223067. The reversal of 55971223027 is 72032217955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55971223027 - 2⁷ = 55971222899 is a prime.

It is not a weakly prime, because it can be changed into another prime (55971223067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27985611513 + 27985611514.

It is an arithmetic number, because the mean of its divisors is an integer number (27985611514).

Almost surely, 2^55971223027 is an apocalyptic number.

55971223027 is a deficient number, since it is larger than the sum of its proper divisors (1).

55971223027 is an equidigital number, since it uses as much as digits as its factorization.

55971223027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 55971223027 in words is "fifty-five billion, nine hundred seventy-one million, two hundred twenty-three thousand, twenty-seven".