2111553305 has 8 divisors (see below), whose sum is σ = 2535648192. Its totient is φ = 1688053168.

The previous prime is 2111553299. The next prime is 2111553359. The reversal of 2111553305 is 5033551112.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111553305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140837 + ... + 155106.

It is an arithmetic number, because the mean of its divisors is an integer number (316956024).

Almost surely, 2^2111553305 is an apocalyptic number.

It is an amenable number.

2111553305 is a deficient number, since it is larger than the sum of its proper divisors (424094887).

2111553305 is a wasteful number, since it uses less digits than its factorization.

2111553305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297375.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 2111553305 is about 45951.6409391438. The cubic root of 2111553305 is about 1282.9232717349.

The spelling of 2111553305 in words is "two billion, one hundred eleven million, five hundred fifty-three thousand, three hundred five".