1050165553 has 4 divisors (see below), whose sum is σ = 1060992100. Its totient is φ = 1039339008.

The previous prime is 1050165547. The next prime is 1050165581. The reversal of 1050165553 is 3555610501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3555610501 = 337 ⋅10550773.

It can be written as a sum of positive squares in 2 ways, for example, as 320517409 + 729648144 = 17903^2 + 27012^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050165553 - 2⁵ = 1050165521 is a prime.

It is a super-2 number, since 2×1050165553² = 2205695377415591618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1050165253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5413128 + ... + 5413321.

It is an arithmetic number, because the mean of its divisors is an integer number (265248025).

Almost surely, 2^1050165553 is an apocalyptic number.

It is an amenable number.

1050165553 is a deficient number, since it is larger than the sum of its proper divisors (10826547).

1050165553 is an equidigital number, since it uses as much as digits as its factorization.

1050165553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10826546.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 1050165553 is about 32406.2579296037. The cubic root of 1050165553 is about 1016.4497722508.

The spelling of 1050165553 in words is "one billion, fifty million, one hundred sixty-five thousand, five hundred fifty-three".