54021333344421 has 32 divisors (see below), whose sum is σ = 75960312422400. Its totient is φ = 34055386320960.

The previous prime is 54021333344357. The next prime is 54021333344449. The reversal of 54021333344421 is 12444333312045.

It is not a de Polignac number, because 54021333344421 - 2⁶ = 54021333344357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54021333344421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54021333344491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72962560 + ... + 73699238.

It is an arithmetic number, because the mean of its divisors is an integer number (2373759763200).

Almost surely, 2^{54021333344421} is an apocalyptic number.

It is an amenable number.

54021333344421 is a deficient number, since it is larger than the sum of its proper divisors (21938979077979).

54021333344421 is a wasteful number, since it uses less digits than its factorization.

54021333344421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739089.

The product of its (nonzero) digits is 414720, while the sum is 39.

Adding to 54021333344421 its reverse (12444333312045), we get a palindrome (66465666656466).

The spelling of 54021333344421 in words is "fifty-four trillion, twenty-one billion, three hundred thirty-three million, three hundred forty-four thousand, four hundred twenty-one".