1055004209 has 4 divisors (see below), whose sum is σ = 1205719104. Its totient is φ = 904289316.

The previous prime is 1055004191. The next prime is 1055004217. The reversal of 1055004209 is 9024005501.

1055004209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1055004209 - 2¹⁶ = 1054938673 is a prime.

It is a super-2 number, since 2×1055004209² = 2226067762015431362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055004229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75357437 + ... + 75357450.

It is an arithmetic number, because the mean of its divisors is an integer number (301429776).

Almost surely, 2^1055004209 is an apocalyptic number.

It is an amenable number.

1055004209 is a deficient number, since it is larger than the sum of its proper divisors (150714895).

1055004209 is an equidigital number, since it uses as much as digits as its factorization.

1055004209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150714894.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1055004209 is about 32480.8283299549. The cubic root of 1055004209 is about 1018.0084840842.

The spelling of 1055004209 in words is "one billion, fifty-five million, four thousand, two hundred nine".