55547319 has 16 divisors (see below), whose sum is σ = 77020160. Its totient is φ = 35570880.

The previous prime is 55547299. The next prime is 55547363. The reversal of 55547319 is 91374555.

It is not a de Polignac number, because 55547319 - 2⁵ = 55547287 is a prime.

It is a super-2 number, since 2×55547319² = 6171009296175522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55547519) 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 in 15 ways as a sum of consecutive naturals, for example, 10779 + ... + 15075.

It is an arithmetic number, because the mean of its divisors is an integer number (4813760).

Almost surely, 2^55547319 is an apocalyptic number.

55547319 is a deficient number, since it is larger than the sum of its proper divisors (21472841).

55547319 is a wasteful number, since it uses less digits than its factorization.

55547319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470.

The product of its digits is 94500, while the sum is 39.

The square root of 55547319 is about 7453.0073795750. The cubic root of 55547319 is about 381.5525562476.

It can be divided in two parts, 555 and 47319, that added together give a palindrome (47874).

The spelling of 55547319 in words is "fifty-five million, five hundred forty-seven thousand, three hundred nineteen".