54169421 has 2 divisors, whose sum is σ = 54169422. Its totient is φ = 54169420.

The previous prime is 54169411. The next prime is 54169469. The reversal of 54169421 is 12496145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50965321 + 3204100 = 7139^2 + 1790^2 .

It is a cyclic number.

It is not a de Polignac number, because 54169421 - 2¹⁴ = 54153037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54169411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27084710 + 27084711.

It is an arithmetic number, because the mean of its divisors is an integer number (27084711).

Almost surely, 2^54169421 is an apocalyptic number.

It is an amenable number.

54169421 is a deficient number, since it is larger than the sum of its proper divisors (1).

54169421 is an equidigital number, since it uses as much as digits as its factorization.

54169421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 54169421 is about 7359.9878396639. The cubic root of 54169421 is about 378.3711931855.

The spelling of 54169421 in words is "fifty-four million, one hundred sixty-nine thousand, four hundred twenty-one".