54355519 has 2 divisors, whose sum is σ = 54355520. Its totient is φ = 54355518.

The previous prime is 54355517. The next prime is 54355537. The reversal of 54355519 is 91555345.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54355519 - 2¹ = 54355517 is a prime.

It is a super-2 number, since 2×54355519² = 5909044891518722, which contains 22 as substring.

Together with 54355517, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54355513) 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, 27177759 + 27177760.

It is an arithmetic number, because the mean of its divisors is an integer number (27177760).

Almost surely, 2^54355519 is an apocalyptic number.

54355519 is a deficient number, since it is larger than the sum of its proper divisors (1).

54355519 is an equidigital number, since it uses as much as digits as its factorization.

54355519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67500, while the sum is 37.

The square root of 54355519 is about 7372.6195480304. The cubic root of 54355519 is about 378.8039935805.

The spelling of 54355519 in words is "fifty-four million, three hundred fifty-five thousand, five hundred nineteen".