1056550665 has 8 divisors (see below), whose sum is σ = 1690481088. Its totient is φ = 563493680.

The previous prime is 1056550603. The next prime is 1056550679. The reversal of 1056550665 is 5660556501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1056550665 - 2¹¹ = 1056548617 is a prime.

It is a super-2 number, since 2×1056550665² = 2232598615423884450, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35218341 + ... + 35218370.

It is an arithmetic number, because the mean of its divisors is an integer number (211310136).

Almost surely, 2^1056550665 is an apocalyptic number.

1056550665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056550665 is a deficient number, since it is larger than the sum of its proper divisors (633930423).

1056550665 is an equidigital number, since it uses as much as digits as its factorization.

1056550665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70436719.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 1056550665 is about 32504.6252862573. The cubic root of 1056550665 is about 1018.5056501049.

The spelling of 1056550665 in words is "one billion, fifty-six million, five hundred fifty thousand, six hundred sixty-five".