1056427765 has 16 divisors (see below), whose sum is σ = 1310178816. Its totient is φ = 816897600.

The previous prime is 1056427763. The next prime is 1056427769. The reversal of 1056427765 is 5677246501.

It is not a de Polignac number, because 1056427765 - 2¹ = 1056427763 is a prime.

It is a super-2 number, since 2×1056427765² = 2232079245325790450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056427763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142234 + ... + 149476.

It is an arithmetic number, because the mean of its divisors is an integer number (81886176).

Almost surely, 2^1056427765 is an apocalyptic number.

It is an amenable number.

1056427765 is a deficient number, since it is larger than the sum of its proper divisors (253751051).

1056427765 is an equidigital number, since it uses as much as digits as its factorization.

1056427765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 1056427765 is about 32502.7347310961. The cubic root of 1056427765 is about 1018.4661570632.

The spelling of 1056427765 in words is "one billion, fifty-six million, four hundred twenty-seven thousand, seven hundred sixty-five".