54100421 has 4 divisors (see below), whose sum is σ = 54144000. Its totient is φ = 54056844.

The previous prime is 54100379. The next prime is 54100433. The reversal of 54100421 is 12400145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54100421 - 2¹⁸ = 53838277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54100421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54100471) 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, 19871 + ... + 22428.

It is an arithmetic number, because the mean of its divisors is an integer number (13536000).

Almost surely, 2^54100421 is an apocalyptic number.

It is an amenable number.

54100421 is a deficient number, since it is larger than the sum of its proper divisors (43579).

54100421 is a wasteful number, since it uses less digits than its factorization.

54100421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43578.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 54100421 is about 7355.2988382526. The cubic root of 54100421 is about 378.2104708639.

Adding to 54100421 its reverse (12400145), we get a palindrome (66500566).

The spelling of 54100421 in words is "fifty-four million, one hundred thousand, four hundred twenty-one".