2053111815 has 24 divisors (see below), whose sum is σ = 3560055408. Its totient is φ = 1094584320.

The previous prime is 2053111807. The next prime is 2053111829. The reversal of 2053111815 is 5181113502.

2053111815 is a `hidden beast` number, since 2 + 0 + 531 + 118 + 15 = 666.

It is not a de Polignac number, because 2053111815 - 2³ = 2053111807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143047 + ... + 156743.

It is an arithmetic number, because the mean of its divisors is an integer number (148335642).

Almost surely, 2^2053111815 is an apocalyptic number.

2053111815 is a deficient number, since it is larger than the sum of its proper divisors (1506943593).

2053111815 is a wasteful number, since it uses less digits than its factorization.

2053111815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17039 (or 17036 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 2053111815 is about 45311.2769076308. The cubic root of 2053111815 is about 1270.9765393065.

The spelling of 2053111815 in words is "two billion, fifty-three million, one hundred eleven thousand, eight hundred fifteen".