54544409 has 2 divisors, whose sum is σ = 54544410. Its totient is φ = 54544408.

The previous prime is 54544403. The next prime is 54544411. The reversal of 54544409 is 90444545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54346384 + 198025 = 7372^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 54544409 - 2¹² = 54540313 is a prime.

Together with 54544411, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3256658 and since 54544409 and 3256658 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (54544403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27272204 + 27272205.

It is an arithmetic number, because the mean of its divisors is an integer number (27272205).

Almost surely, 2^54544409 is an apocalyptic number.

It is an amenable number.

54544409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54544409 is an equidigital number, since it uses as much as digits as its factorization.

54544409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 54544409 is about 7385.4186746589. The cubic root of 54544409 is about 379.2422781920.

The spelling of 54544409 in words is "fifty-four million, five hundred forty-four thousand, four hundred nine".