54354210221 has 4 divisors (see below), whose sum is σ = 54354698112. Its totient is φ = 54353722332.

The previous prime is 54354210187. The next prime is 54354210241. The reversal of 54354210221 is 12201245345.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54354210221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54354210241) 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, 14276 + ... + 330018.

It is an arithmetic number, because the mean of its divisors is an integer number (13588674528).

Almost surely, 2^54354210221 is an apocalyptic number.

It is an amenable number.

54354210221 is a deficient number, since it is larger than the sum of its proper divisors (487891).

54354210221 is a wasteful number, since it uses less digits than its factorization.

54354210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487890.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 54354210221 its reverse (12201245345), we get a palindrome (66555455566).

The spelling of 54354210221 in words is "fifty-four billion, three hundred fifty-four million, two hundred ten thousand, two hundred twenty-one".