1055530211 has 4 divisors (see below), whose sum is σ = 1055751000. Its totient is φ = 1055309424.

The previous prime is 1055530207. The next prime is 1055530219. The reversal of 1055530211 is 1120355501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1120355501 = 19 ⋅58966079.

It is a cyclic number.

It is not a de Polignac number, because 1055530211 - 2² = 1055530207 is a prime.

It is a super-2 number, since 2×1055530211² = 2228288052667409042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055530219) 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, 103061 + ... + 112838.

It is an arithmetic number, because the mean of its divisors is an integer number (263937750).

Almost surely, 2^1055530211 is an apocalyptic number.

1055530211 is a deficient number, since it is larger than the sum of its proper divisors (220789).

1055530211 is an equidigital number, since it uses as much as digits as its factorization.

1055530211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220788.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1055530211 is about 32488.9244358751. The cubic root of 1055530211 is about 1018.1776415551.

Adding to 1055530211 its reverse (1120355501), we get a palindrome (2175885712).

The spelling of 1055530211 in words is "one billion, fifty-five million, five hundred thirty thousand, two hundred eleven".