54806519 has 2 divisors, whose sum is σ = 54806520. Its totient is φ = 54806518.

The previous prime is 54806513. The next prime is 54806551. The reversal of 54806519 is 91560845.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54806519 - 2²⁰ = 53757943 is a prime.

It is a super-2 number, since 2×54806519² = 6007509049794722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54806513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27403259 + 27403260.

It is an arithmetic number, because the mean of its divisors is an integer number (27403260).

Almost surely, 2^54806519 is an apocalyptic number.

54806519 is a deficient number, since it is larger than the sum of its proper divisors (1).

54806519 is an equidigital number, since it uses as much as digits as its factorization.

54806519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 54806519 is about 7403.1425084217. The cubic root of 54806519 is about 379.8487833233.

The spelling of 54806519 in words is "fifty-four million, eight hundred six thousand, five hundred nineteen".