1056629865 has 16 divisors (see below), whose sum is σ = 1715842368. Its totient is φ = 555124416.

The previous prime is 1056629863. The next prime is 1056629897. The reversal of 1056629865 is 5689266501.

It is not a de Polignac number, because 1056629865 - 2¹ = 1056629863 is a prime.

It is a super-2 number, since 2×1056629865² = 2232933343219836450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056629863) 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 in 15 ways as a sum of consecutive naturals, for example, 524682 + ... + 526691.

It is an arithmetic number, because the mean of its divisors is an integer number (107240148).

Almost surely, 2^1056629865 is an apocalyptic number.

1056629865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056629865 is a deficient number, since it is larger than the sum of its proper divisors (659212503).

1056629865 is a wasteful number, since it uses less digits than its factorization.

1056629865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051448.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 1056629865 is about 32505.8435515832. The cubic root of 1056629865 is about 1018.5310988393.

The spelling of 1056629865 in words is "one billion, fifty-six million, six hundred twenty-nine thousand, eight hundred sixty-five".