54422420445521 has 4 divisors (see below), whose sum is σ = 54435216692532. Its totient is φ = 54409624198512.

The previous prime is 54422420445511. The next prime is 54422420445557. The reversal of 54422420445521 is 12554402422445.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10988323338496 + 43434097107025 = 3314864^2 + 6590455^2 .

It is a cyclic number.

It is not a de Polignac number, because 54422420445521 - 2¹⁸ = 54422420183377 is a prime.

It is a super-2 number, since 2×54422420445521² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54422420445511) 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, 6398117126 + ... + 6398125631.

It is an arithmetic number, because the mean of its divisors is an integer number (13608804173133).

Almost surely, 2^{54422420445521} is an apocalyptic number.

It is an amenable number.

54422420445521 is a deficient number, since it is larger than the sum of its proper divisors (12796247011).

54422420445521 is a wasteful number, since it uses less digits than its factorization.

54422420445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796247010.

The product of its (nonzero) digits is 2048000, while the sum is 44.

Adding to 54422420445521 its reverse (12554402422445), we get a palindrome (66976822867966).

The spelling of 54422420445521 in words is "fifty-four trillion, four hundred twenty-two billion, four hundred twenty million, four hundred forty-five thousand, five hundred twenty-one".