55021711271 has 2 divisors, whose sum is σ = 55021711272. Its totient is φ = 55021711270.

The previous prime is 55021711247. The next prime is 55021711343. The reversal of 55021711271 is 17211712055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55021711271 is a prime.

It is a super-2 number, since 2×55021711271² (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 (55021711231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27510855635 + 27510855636.

It is an arithmetic number, because the mean of its divisors is an integer number (27510855636).

Almost surely, 2^55021711271 is an apocalyptic number.

55021711271 is a deficient number, since it is larger than the sum of its proper divisors (1).

55021711271 is an equidigital number, since it uses as much as digits as its factorization.

55021711271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4900, while the sum is 32.

The spelling of 55021711271 in words is "fifty-five billion, twenty-one million, seven hundred eleven thousand, two hundred seventy-one".