1056211489 has 2 divisors, whose sum is σ = 1056211490. Its totient is φ = 1056211488.

The previous prime is 1056211423. The next prime is 1056211493. The reversal of 1056211489 is 9841126501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547934464 + 508277025 = 23408^2 + 22545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056211489 - 2¹³ = 1056203297 is a prime.

It is a super-2 number, since 2×1056211489² = 2231165418991194242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056217489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528105744 + 528105745.

It is an arithmetic number, because the mean of its divisors is an integer number (528105745).

Almost surely, 2^1056211489 is an apocalyptic number.

It is an amenable number.

1056211489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056211489 is an equidigital number, since it uses as much as digits as its factorization.

1056211489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 1056211489 is about 32499.4075176764. The cubic root of 1056211489 is about 1018.3966508691.

The spelling of 1056211489 in words is "one billion, fifty-six million, two hundred eleven thousand, four hundred eighty-nine".