54004221542 has 4 divisors (see below), whose sum is σ = 81006332316. Its totient is φ = 27002110770.

The previous prime is 54004221517. The next prime is 54004221611. The reversal of 54004221542 is 24512240045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24512240045 = 5 ⋅4902448009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13501055384 + ... + 13501055387.

It is an arithmetic number, because the mean of its divisors is an integer number (20251583079).

Almost surely, 2^54004221542 is an apocalyptic number.

54004221542 is a deficient number, since it is larger than the sum of its proper divisors (27002110774).

54004221542 is a wasteful number, since it uses less digits than its factorization.

54004221542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27002110773.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 54004221542 its reverse (24512240045), we get a palindrome (78516461587).

The spelling of 54004221542 in words is "fifty-four billion, four million, two hundred twenty-one thousand, five hundred forty-two".