54445519 has 2 divisors, whose sum is σ = 54445520. Its totient is φ = 54445518.

The previous prime is 54445513. The next prime is 54445541. The reversal of 54445519 is 91554445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54445519 - 2³ = 54445511 is a prime.

It is a super-2 number, since 2×54445519² = 5928629078358722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54445511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27222759 + 27222760.

It is an arithmetic number, because the mean of its divisors is an integer number (27222760).

Almost surely, 2^54445519 is an apocalyptic number.

54445519 is a deficient number, since it is larger than the sum of its proper divisors (1).

54445519 is an equidigital number, since it uses as much as digits as its factorization.

54445519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

The square root of 54445519 is about 7378.7206885747. The cubic root of 54445519 is about 379.0129485067.

The spelling of 54445519 in words is "fifty-four million, four hundred forty-five thousand, five hundred nineteen".