1055685913 has 2 divisors, whose sum is σ = 1055685914. Its totient is φ = 1055685912.

The previous prime is 1055685899. The next prime is 1055685977. The reversal of 1055685913 is 3195865501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 963295369 + 92390544 = 31037^2 + 9612^2 .

It is an emirp because it is prime and its reverse (3195865501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055685913 - 2²⁹ = 518815001 is a prime.

It is a super-2 number, since 2×1055685913² = 2228945493813287138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055685913.

It is not a weakly prime, because it can be changed into another prime (1055685613) 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, 527842956 + 527842957.

It is an arithmetic number, because the mean of its divisors is an integer number (527842957).

Almost surely, 2^1055685913 is an apocalyptic number.

It is an amenable number.

1055685913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055685913 is an equidigital number, since it uses as much as digits as its factorization.

1055685913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 43.

The square root of 1055685913 is about 32491.3205795025. The cubic root of 1055685913 is about 1018.2277031257.

It can be divided in two parts, 10556 and 85913, that added together give a palindrome (96469).

The spelling of 1055685913 in words is "one billion, fifty-five million, six hundred eighty-five thousand, nine hundred thirteen".