54021120042 has 16 divisors (see below), whose sum is σ = 108049875840. Its totient is φ = 18005767392.

The previous prime is 54021120007. The next prime is 54021120061. The reversal of 54021120042 is 24002112045.

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, 224043 + ... + 397790.

It is an arithmetic number, because the mean of its divisors is an integer number (6753117240).

Almost surely, 2^54021120042 is an apocalyptic number.

54021120042 is an abundant number, since it is smaller than the sum of its proper divisors (54028755798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54021120042 is a wasteful number, since it uses less digits than its factorization.

54021120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636317.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 54021120042 its reverse (24002112045), we get a palindrome (78023232087).

The spelling of 54021120042 in words is "fifty-four billion, twenty-one million, one hundred twenty thousand, forty-two".