1055055609 has 12 divisors (see below), whose sum is σ = 1590229056. Its totient is φ = 672788952.

The previous prime is 1055055601. The next prime is 1055055623. The reversal of 1055055609 is 9065505501.

It is not a de Polignac number, because 1055055609 - 2³ = 1055055601 is a prime.

It is a super-2 number, since 2×1055055609² = 2226284676164721762, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1055055601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2548237 + ... + 2548650.

It is an arithmetic number, because the mean of its divisors is an integer number (132519088).

Almost surely, 2^1055055609 is an apocalyptic number.

It is an amenable number.

1055055609 is a deficient number, since it is larger than the sum of its proper divisors (535173447).

1055055609 is a wasteful number, since it uses less digits than its factorization.

1055055609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096916 (or 5096913 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The square root of 1055055609 is about 32481.6195562968. The cubic root of 1055055609 is about 1018.0250163362.

The spelling of 1055055609 in words is "one billion, fifty-five million, fifty-five thousand, six hundred nine".