54004421501 has 4 divisors (see below), whose sum is σ = 54005937852. Its totient is φ = 54002905152.

The previous prime is 54004421491. The next prime is 54004421519. The reversal of 54004421501 is 10512440045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10512440045 = 5 ⋅2102488009.

It can be written as a sum of positive squares in 2 ways, for example, as 6249060601 + 47755360900 = 79051^2 + 218530^2 .

It is a cyclic number.

It is not a de Polignac number, because 54004421501 - 2¹⁸ = 54004159357 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 (54004421531) 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, 703436 + ... + 776421.

It is an arithmetic number, because the mean of its divisors is an integer number (13501484463).

Almost surely, 2^54004421501 is an apocalyptic number.

It is an amenable number.

54004421501 is a deficient number, since it is larger than the sum of its proper divisors (1516351).

54004421501 is a wasteful number, since it uses less digits than its factorization.

54004421501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516350.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 54004421501 its reverse (10512440045), we get a palindrome (64516861546).

The spelling of 54004421501 in words is "fifty-four billion, four million, four hundred twenty-one thousand, five hundred one".