54221563 has 4 divisors (see below), whose sum is σ = 59150808. Its totient is φ = 49292320.

The previous prime is 54221527. The next prime is 54221567. The reversal of 54221563 is 36512245.

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

It is a de Polignac number, because none of the positive numbers 2^k-54221563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54221567) 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, 2464606 + ... + 2464627.

It is an arithmetic number, because the mean of its divisors is an integer number (14787702).

Almost surely, 2^54221563 is an apocalyptic number.

54221563 is a deficient number, since it is larger than the sum of its proper divisors (4929245).

54221563 is a wasteful number, since it uses less digits than its factorization.

54221563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929244.

The product of its digits is 7200, while the sum is 28.

The square root of 54221563 is about 7363.5292489403. The cubic root of 54221563 is about 378.4925575000.

The spelling of 54221563 in words is "fifty-four million, two hundred twenty-one thousand, five hundred sixty-three".