1056690650 has 12 divisors (see below), whose sum is σ = 1965444702. Its totient is φ = 422676240.

The previous prime is 1056690631. The next prime is 1056690667. The reversal of 1056690650 is 560966501.

It can be written as a sum of positive squares in 3 ways, for example, as 407918809 + 648771841 = 20197^2 + 25471^2 .

It is a super-2 number, since 2×1056690650² = 2233190259594845000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10566857 + ... + 10566956.

Almost surely, 2^1056690650 is an apocalyptic number.

1056690650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056690650 is a deficient number, since it is larger than the sum of its proper divisors (908754052).

1056690650 is a wasteful number, since it uses less digits than its factorization.

1056690650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21133825 (or 21133820 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 1056690650 is about 32506.7785238710. The cubic root of 1056690650 is about 1018.5506295592.

The spelling of 1056690650 in words is "one billion, fifty-six million, six hundred ninety thousand, six hundred fifty".