2054557111 has 2 divisors, whose sum is σ = 2054557112. Its totient is φ = 2054557110.

The previous prime is 2054557093. The next prime is 2054557121. The reversal of 2054557111 is 1117554502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2054557111 - 2⁷ = 2054556983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054557121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027278555 + 1027278556.

It is an arithmetic number, because the mean of its divisors is an integer number (1027278556).

Almost surely, 2^2054557111 is an apocalyptic number.

2054557111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054557111 is an equidigital number, since it uses as much as digits as its factorization.

2054557111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 2054557111 is about 45327.2226261438. Note that the first 3 decimals coincide. The cubic root of 2054557111 is about 1271.2747056352.

The spelling of 2054557111 in words is "two billion, fifty-four million, five hundred fifty-seven thousand, one hundred eleven".