1055885813 has 2 divisors, whose sum is σ = 1055885814. Its totient is φ = 1055885812.

The previous prime is 1055885773. The next prime is 1055885819. The reversal of 1055885813 is 3185885501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715188049 + 340697764 = 26743^2 + 18458^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055885813 - 2²⁰ = 1054837237 is a prime.

It is a super-2 number, since 2×1055885813² = 2229789700189341938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055885819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527942906 + 527942907.

It is an arithmetic number, because the mean of its divisors is an integer number (527942907).

Almost surely, 2^1055885813 is an apocalyptic number.

It is an amenable number.

1055885813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055885813 is an equidigital number, since it uses as much as digits as its factorization.

1055885813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192000, while the sum is 44.

The square root of 1055885813 is about 32494.3966400363. The cubic root of 1055885813 is about 1018.2919680961.

The spelling of 1055885813 in words is "one billion, fifty-five million, eight hundred eighty-five thousand, eight hundred thirteen".