1056660511 has 2 divisors, whose sum is σ = 1056660512. Its totient is φ = 1056660510.

The previous prime is 1056660481. The next prime is 1056660529. The reversal of 1056660511 is 1150666501.

It is a strong prime.

It is an emirp because it is prime and its reverse (1150666501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1056660511 - 2⁹ = 1056659999 is a prime.

It is a super-2 number, since 2×1056660511² = 2233062871013562242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056660811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528330255 + 528330256.

It is an arithmetic number, because the mean of its divisors is an integer number (528330256).

Almost surely, 2^1056660511 is an apocalyptic number.

1056660511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056660511 is an equidigital number, since it uses as much as digits as its factorization.

1056660511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1056660511 is about 32506.3149403312. The cubic root of 1056660511 is about 1018.5409457445.

The spelling of 1056660511 in words is "one billion, fifty-six million, six hundred sixty thousand, five hundred eleven".