54206563 has 4 divisors (see below), whose sum is σ = 57059560. Its totient is φ = 51353568.

The previous prime is 54206549. The next prime is 54206567. The reversal of 54206563 is 36560245.

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 54206563 - 2¹⁷ = 54075491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54206567) 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, 1426470 + ... + 1426507.

It is an arithmetic number, because the mean of its divisors is an integer number (14264890).

Almost surely, 2^54206563 is an apocalyptic number.

54206563 is a deficient number, since it is larger than the sum of its proper divisors (2852997).

54206563 is a wasteful number, since it uses less digits than its factorization.

54206563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852996.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 54206563 is about 7362.5106451536. The cubic root of 54206563 is about 378.4576518790.

The spelling of 54206563 in words is "fifty-four million, two hundred six thousand, five hundred sixty-three".