2155588481 has 2 divisors, whose sum is σ = 2155588482. Its totient is φ = 2155588480.

The previous prime is 2155588453. The next prime is 2155588483. The reversal of 2155588481 is 1848855512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1937760400 + 217828081 = 44020^2 + 14759^2 .

It is a cyclic number.

It is not a de Polignac number, because 2155588481 - 2¹⁰ = 2155587457 is a prime.

It is a super-2 number, since 2×2155588481² = 9293123398839774722, which contains 22 as substring.

Together with 2155588483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2155588483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077794240 + 1077794241.

It is an arithmetic number, because the mean of its divisors is an integer number (1077794241).

Almost surely, 2^2155588481 is an apocalyptic number.

It is an amenable number.

2155588481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155588481 is an equidigital number, since it uses as much as digits as its factorization.

2155588481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512000, while the sum is 47.

The square root of 2155588481 is about 46428.3155089650. The cubic root of 2155588481 is about 1291.7801837068.

The spelling of 2155588481 in words is "two billion, one hundred fifty-five million, five hundred eighty-eight thousand, four hundred eighty-one".