54051421 has 2 divisors, whose sum is σ = 54051422. Its totient is φ = 54051420.

The previous prime is 54051397. The next prime is 54051427. The reversal of 54051421 is 12415045.

54051421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42902500 + 11148921 = 6550^2 + 3339^2 .

It is a cyclic number.

It is not a de Polignac number, because 54051421 - 2⁷ = 54051293 is a prime.

It is a super-2 number, since 2×54051421² = 5843112224238482, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 54051392 and 54051401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54051427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27025710 + 27025711.

It is an arithmetic number, because the mean of its divisors is an integer number (27025711).

Almost surely, 2^54051421 is an apocalyptic number.

It is an amenable number.

54051421 is a deficient number, since it is larger than the sum of its proper divisors (1).

54051421 is an equidigital number, since it uses as much as digits as its factorization.

54051421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 54051421 is about 7351.9671517220. The cubic root of 54051421 is about 378.0962517223.

Adding to 54051421 its reverse (12415045), we get a palindrome (66466466).

The spelling of 54051421 in words is "fifty-four million, fifty-one thousand, four hundred twenty-one".