1053550409 has 2 divisors, whose sum is σ = 1053550410. Its totient is φ = 1053550408.

The previous prime is 1053550403. The next prime is 1053550423. The reversal of 1053550409 is 9040553501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845181184 + 208369225 = 29072^2 + 14435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053550409 - 2²⁰ = 1052501833 is a prime.

It is a super-2 number, since 2×1053550409² = 2219936928608134562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1053550403) 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 as a sum of consecutive naturals, namely, 526775204 + 526775205.

It is an arithmetic number, because the mean of its divisors is an integer number (526775205).

Almost surely, 2^1053550409 is an apocalyptic number.

It is an amenable number.

1053550409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053550409 is an equidigital number, since it uses as much as digits as its factorization.

1053550409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 1053550409 is about 32458.4412595553. The cubic root of 1053550409 is about 1017.5406625504.

The spelling of 1053550409 in words is "one billion, fifty-three million, five hundred fifty thousand, four hundred nine".