1055533789 has 2 divisors, whose sum is σ = 1055533790. Its totient is φ = 1055533788.

The previous prime is 1055533763. The next prime is 1055533799. The reversal of 1055533789 is 9873355501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 933608025 + 121925764 = 30555^2 + 11042^2 .

It is an emirp because it is prime and its reverse (9873355501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055533789 is a prime.

It is a super-2 number, since 2×1055533789² = 2228303159441393042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055533709) 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, 527766894 + 527766895.

It is an arithmetic number, because the mean of its divisors is an integer number (527766895).

Almost surely, 2^1055533789 is an apocalyptic number.

It is an amenable number.

1055533789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055533789 is an equidigital number, since it uses as much as digits as its factorization.

1055533789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567000, while the sum is 46.

The square root of 1055533789 is about 32488.9795007476. The cubic root of 1055533789 is about 1018.1787920150.

It can be divided in two parts, 10555 and 33789, that added together give a palindrome (44344).

The spelling of 1055533789 in words is "one billion, fifty-five million, five hundred thirty-three thousand, seven hundred eighty-nine".