2053518555 has 16 divisors (see below), whose sum is σ = 3584323584. Its totient is φ = 995645280.

The previous prime is 2053518539. The next prime is 2053518557. The reversal of 2053518555 is 5558153502.

It is a happy number.

It is not a de Polignac number, because 2053518555 - 2⁴ = 2053518539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2053518557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6222619 + ... + 6222948.

It is an arithmetic number, because the mean of its divisors is an integer number (224020224).

Almost surely, 2^2053518555 is an apocalyptic number.

2053518555 is a deficient number, since it is larger than the sum of its proper divisors (1530805029).

2053518555 is a wasteful number, since it uses less digits than its factorization.

2053518555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12445586.

The product of its (nonzero) digits is 150000, while the sum is 39.

The square root of 2053518555 is about 45315.7649720271. The cubic root of 2053518555 is about 1271.0604644098.

The spelling of 2053518555 in words is "two billion, fifty-three million, five hundred eighteen thousand, five hundred fifty-five".