54020651563 has 4 divisors (see below), whose sum is σ = 56369375568. Its totient is φ = 51671927560.

The previous prime is 54020651497. The next prime is 54020651569. The reversal of 54020651563 is 36515602045.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54020651563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54020651569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174361968 + ... + 1174362013.

It is an arithmetic number, because the mean of its divisors is an integer number (14092343892).

Almost surely, 2^54020651563 is an apocalyptic number.

54020651563 is a deficient number, since it is larger than the sum of its proper divisors (2348724005).

54020651563 is a wasteful number, since it uses less digits than its factorization.

54020651563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348724004.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 54020651563 in words is "fifty-four billion, twenty million, six hundred fifty-one thousand, five hundred sixty-three".