54221311505 has 8 divisors (see below), whose sum is σ = 65105330472. Its totient is φ = 43350544768.

The previous prime is 54221311493. The next prime is 54221311523. The reversal of 54221311505 is 50511312245.

It can be written as a sum of positive squares in 4 ways, for example, as 5502227329 + 48719084176 = 74177^2 + 220724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54221311505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3304052 + ... + 3320421.

It is an arithmetic number, because the mean of its divisors is an integer number (8138166309).

Almost surely, 2^54221311505 is an apocalyptic number.

It is an amenable number.

54221311505 is a deficient number, since it is larger than the sum of its proper divisors (10884018967).

54221311505 is a wasteful number, since it uses less digits than its factorization.

54221311505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626115.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 54221311505 in words is "fifty-four billion, two hundred twenty-one million, three hundred eleven thousand, five hundred five".