1056505427 has 2 divisors, whose sum is σ = 1056505428. Its totient is φ = 1056505426.

The previous prime is 1056505397. The next prime is 1056505441. The reversal of 1056505427 is 7245056501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1056505427 - 2¹⁰ = 1056504403 is a prime.

It is a super-2 number, since 2×1056505427² = 2232407434560904658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056535427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528252713 + 528252714.

It is an arithmetic number, because the mean of its divisors is an integer number (528252714).

Almost surely, 2^1056505427 is an apocalyptic number.

1056505427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056505427 is an equidigital number, since it uses as much as digits as its factorization.

1056505427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1056505427 is about 32503.9294086115. The cubic root of 1056505427 is about 1018.4911135512.

The spelling of 1056505427 in words is "one billion, fifty-six million, five hundred five thousand, four hundred twenty-seven".