2111534553 has 8 divisors (see below), whose sum is σ = 2815892608. Its totient is φ = 1407433104.

The previous prime is 2111534531. The next prime is 2111534567. The reversal of 2111534553 is 3554351112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111534553 - 2¹⁴ = 2111518169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111534553.

It is not an unprimeable number, because it can be changed into a prime (2111534053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44050 + ... + 78507.

It is an arithmetic number, because the mean of its divisors is an integer number (351986576).

Almost surely, 2^2111534553 is an apocalyptic number.

It is an amenable number.

2111534553 is a deficient number, since it is larger than the sum of its proper divisors (704358055).

2111534553 is a wasteful number, since it uses less digits than its factorization.

2111534553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128303.

The product of its digits is 9000, while the sum is 30.

The square root of 2111534553 is about 45951.4368980993. The cubic root of 2111534553 is about 1282.9194739859.

Adding to 2111534553 its reverse (3554351112), we get a palindrome (5665885665).

The spelling of 2111534553 in words is "two billion, one hundred eleven million, five hundred thirty-four thousand, five hundred fifty-three".