55229319 has 12 divisors (see below), whose sum is σ = 80509000. Its totient is φ = 36481104.

The previous prime is 55229297. The next prime is 55229347. The reversal of 55229319 is 91392255.

It is a happy number.

55229319 is a `hidden beast` number, since 552 + 2 + 93 + 19 = 666.

It is not a de Polignac number, because 55229319 - 2⁸ = 55229063 is a prime.

It is a super-2 number, since 2×55229319² = 6100555354407522, 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 (55229399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27169 + ... + 29130.

Almost surely, 2^55229319 is an apocalyptic number.

55229319 is a deficient number, since it is larger than the sum of its proper divisors (25279681).

55229319 is a wasteful number, since it uses less digits than its factorization.

55229319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56414 (or 56411 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 55229319 is about 7431.6430888465. The cubic root of 55229319 is about 380.8230521458.

It can be divided in two parts, 5522 and 9319, that added together give a palindrome (14841).

The spelling of 55229319 in words is "fifty-five million, two hundred twenty-nine thousand, three hundred nineteen".