2054915543 has 4 divisors (see below), whose sum is σ = 2089744680. Its totient is φ = 2020086408.

The previous prime is 2054915537. The next prime is 2054915557. The reversal of 2054915543 is 3455194502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2054915543 - 2¹⁴ = 2054899159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2054915497 and 2054915506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054915503) 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, 17414480 + ... + 17414597.

It is an arithmetic number, because the mean of its divisors is an integer number (522436170).

Almost surely, 2^2054915543 is an apocalyptic number.

2054915543 is a deficient number, since it is larger than the sum of its proper divisors (34829137).

2054915543 is an equidigital number, since it uses as much as digits as its factorization.

2054915543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34829136.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 2054915543 is about 45331.1762807894. The cubic root of 2054915543 is about 1271.3486289538.

The spelling of 2054915543 in words is "two billion, fifty-four million, nine hundred fifteen thousand, five hundred forty-three".