54868421 has 2 divisors, whose sum is σ = 54868422. Its totient is φ = 54868420.

The previous prime is 54868403. The next prime is 54868427. The reversal of 54868421 is 12486845.

It is a happy number.

54868421 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., 33477796 + 21390625 = 5786^2 + 4625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54868421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54868427) 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, 27434210 + 27434211.

It is an arithmetic number, because the mean of its divisors is an integer number (27434211).

Almost surely, 2^54868421 is an apocalyptic number.

It is an amenable number.

54868421 is a deficient number, since it is larger than the sum of its proper divisors (1).

54868421 is an equidigital number, since it uses as much as digits as its factorization.

54868421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 38.

The square root of 54868421 is about 7407.3221207127. The cubic root of 54868421 is about 379.9917380475.

The spelling of 54868421 in words is "fifty-four million, eight hundred sixty-eight thousand, four hundred twenty-one".